Ya 2WD trucks do have their limitations, but with a locker and good driving skills you can surprise a lot of people. But don't even pay attention to people like that, if you've built a good rig yourself and you're proud of it that's all that matters.
What you said at the end of this video is pure gold. People don't understand how important good tires really are. My dad has a 4wd Silverado and he recently got new tires and before he'd spin the tires so easily going uphill on wet pavement, now he has no problems. I applaud you on explaining that haha
This is most ASSUREDLY the absolute best video EVER made concerning and explaining the G80! In fact, this is probably the best video ever made PERIOD explaining ANY mechanical aspect of ANY vehicle! WELL DONE SIR JUST WELL DAMN DONE!!!!! I am in complete AWE after watching this and the entire time it was unfolding in front of my eyes I couldn’t believe what I was watching. I couldn’t believe someone had actually taken the time to do what you did! I was shell shocked to be honest. I am equally as stunned at the lack of views this video has garnered considering the sheer amount of arguing and misinformation being spread over the last 20 years when ALL of the answers could be found right here!!! You should have 1,000,000+ views easy!!! I am going to do my part and plaster this video everywhere I can and I can only hope it snowballs out of control and you get rich beyond your wildest dreams because of it! If so, you would absolutely deserve it!!! Just an incredible video my friend, just well above and beyond anything I have ever watched :)
Thanks for the video! The G80 is a solid traction device, if you don't subject it to explosive shock. They can't handle drag racing or higher horsepower power-plants. With that being said, they are great for a daily driver; I have one in my 86' two wheel drive C10 Chevy and it has saved me during a few bad winter storms. Again... I enjoyed the various driving conditions that you demonstrated the G80 in...!
I have a G80 in '93 4x4 Sonoma. It works for what it's intended for. It's gotten me out of several iffy situations when it snowed here in WA last year. I'm impressed by it.
I got a whole g80 rear end out of a junk yard got 120 bucks which I think is a steal for me and the fact that my 10 bolt open diff I have ate the spider gears.. Put a new set of spider gears in and the main center pin broke and wrecked the whole rear end.. So gettong a 10 bolt g80 for that much was great.. It has got me through freshly ripped ground for a new subdivision that was nothing but mud.. I cruised right on by my co worker who was stuck in his 4x4.. like you said in the video momentum got me through. My dad taught me about that before I was even old enough to drive.. If you know what you are driving through and it's safe to hit it hard and stay in the gas do so! My coworker was pissed that my 2wd 1500 5.3 pulled him out of the same mud i crawled right on through.. In fact I've surprised a lot of people with my ole girl.. Shit my truck has surprised the hell outa me a few times.. She's never left me stuck.. I give that to knowing how to drive in mud and the g80 rear end. I've heard a lot of bad things about the g80 but so far it's been good to me. I don't mess around when it's dry but if the roads are wet I like to have fun sometimes
G80 is a great unit in a 2WD truck. Sounds like you know the limitations of your truck and you don't put it in situations where you know it will get stuck easily.
This particular locker is available from factory with a lot of GM trucks. If you're looking for something like it I'd go talk to your local transmission shop and see what they recommend. I like Eaton products in general, I had an LSD unit in my Camaro and I loved it.
I know I'm late to the party by a cple years, but' I live in N.E and never owned 4x4 til recent, (only because I needed a new truck), I never got stuck or stranded, good driving sense is perfectly worded.
Had this on my 05 GMC Sierra. I used to play with that all the time, no I never beat on it, I would just stop on a hill that hadn't been plowed from the snow yet. I traded it in in May for a 2015 Off Road Tacoma with a electronic locking Diff. We'll see how it works out this winter. Thanks for the video
On my 2005 Colorado is had the RPO code YD3, which said that is the driver selectable locking read differential. But the selecting must be automatic because I do not have a button or a switch. Mine is crew cab and 4x4.
Just picked up an old gem from 2008 with locking rear diff.....thanks for making a video doing all the shit I don't plan on attempting lol. Grew up in the 1990s driving shitty S10 pick ups in snowy Michigan, so I should be able to get through mild central Ohio winters if you're doing all that.
@@AnthonyJ350 it's also amazing what a few sand bags and dropping into first or second gear does for snowy conditions. Technology is great, but skill is always handy
It's been a great locker for sane use and not overly abusive burnouts, but I do agree, for fast corners and drifting, it's not the right piece of equipment. I don't intend to swap it out, but if I did, I'd go for a detroit locker. Yes, they ratchet, but they also work on ice, unlike an eaton true-trac. With tires no bigger than 255, I think you can also use the 10-bolt for a lot of abuse.
I know! When you try to slide the truck it acts like an open diff half the time (except in the snow). Very unpredictable at speed, but it's not designed for that.
No Trent, you didn't. And I'm a Chevy guy. There is no rear and in a 2wd that is going to out mud a truck with 4wd. Sorry. I have a g80 in mine. I know what I'm talking about.
where i go fishing most guys have to use 4wd to get the boats out of the water, my 4wd doesnt work and the lockers in the rear really help out when pulling the boat.
Steve. You don't know. A combo of a driver that really knows there rig can out drive the best rig and rookie driver. Or great driver that doesn't know the rig. I have multi 4x4 full size trucks and drive allot. But my 04 dakota in 2wd stock did better that allot of 4wd. Never over generalize on a public forum. I have g80 in the 1500 hd, 87 has LSD front and back, other 2 k10 are bone stock.
Hell yeah *****. Mine is tough as hell. Now, I wouldn't put one wheel on the mud and one on concrete, rev the motor to 6000 and dump it from park to drive, but it will take a LOT of abuse. I don't beat my truck now, I've rebuilt all the old stuff and now I trail ride and go fairly easy... Take it easy man.
Ya the truck serves me well. I'm in year 8 of owner ship. I can't even consider getting a newer one cause it drives so good and I don't have a payment! Here's a video with everything done to the truck. ua-cam.com/video/Rxh7MVXQSPU/v-deo.html
I had a two wheel drive Silverado and when we had a bad ice storm I could go up hills with no problem when guys with four wheel drive were having all kinds of problems . Now I know why ! Also the truck just had regular all season tires on it .
You put a lot of work into this YT video. Thank you. The real-world examples are fantastic. You did way more to your G80 than I do to mine as it is a practical addition (I ordered it that way) to my K2500 Suburban as I have a ranch that is many, many miles off of paved roads and there are lots of washouts. I would think some aftermarket companies would be selling different counterweights to allow the G80 to engage sooner or stay engaged longer. Is there such a thing??
Not that I know of. I actually recently had the G80 swapped for a traditional clutch style LSD. I gave up a little bit of lock up ability but gained more predictably and better street performance because it's always engaged. ua-cam.com/video/uVxLAoJZuOo/v-deo.html
i've never had a big enough bank account to be able to afford to abuse anything. the G80 is an absolute must. a truck without it to me is almost worthless.
I have a 4wd gmc that has the g80, with all terrain tires it is a beast, can't wait to get some deep snow to play in with it, I won't be drifting it or doing burnouts though I don't want to risk grenading the rear end.
AnthonyJ350 yeah they still offer them my truck is a 2012, they're still an option on the 2018s, idk about the 2019, they're doing a major redisign, you should look up the 2019 silverado if you haven't already. I have mixed feelings about it.
Samuel Clark I agree with the shorter overhangs. Looks like a Ram and F150 put together. I'm interested to see if they do direct injection again or if they do the design with port and direct injection.
Great video, thanks. You were applying some power there. I honestly don't understand how this G80 mechanism lasts 5 minutes. That little centrifugal device is locking the spider gears INSTANTLY. What is stopping these things from immediately exploding all the time? Dave F. in RI
I don't know but GM has put them in A LOT of trucks. So for the average user it seems to be more than enough. I definitely push it harder than the "official" demonstration videos. But I'm pretty sure this one is the most fun to watch.
I’ve had trucks with both these and a Detroit locker in the rear. The G80 is a great stock differential although after having the Detroit for years there is just no comparison. The Detroit locks up so instantaneous, you’d never even know. But for a stock type locker, the G80 is definitely appreciated.
The G80 for sure is a great unit, it does a lot in low traction situations and is installed in millions of trucks. But we can't expect it to be as durable as a Detroit Locker. The G80 is fine for 90% of people out there.
You may not know this answer because it’s many years ahead of this video, but I have a 2020 gmc savana 2500 6.0 Gas with stabilitrak and traction control. How does the G80 work in conjunction with that? Do you have to manually disengage it or does it do it automatically every time it engages? I’m naturally assuming it has to disengage, I can’t imagine it engaging with traction control limiting the spin :)
I'll check this out. But I had great fun on my old 02 1500 2wd. My only regret (or salvation) was not resetting the speed limiter. That LM7 wanted to keep going, and quickly.
Ya should be fine. G80s in half tons trucks will most likely see damage on pavement where there can be a sudden amount of traction. Offroad scenarios with modest throttle input I would say are fine.
Really good video, you're pretty thorough, methodical, easy to digest this way, thanks. As I was watching, contemplated what it makes happen - my view is, the 'best traction' point in a muddy situation where say, you just parked up and have to start off, is right then and there, ie before you ruin the turf under your drive wheels by spinning them. Now what this diff does, it locks when there is 100 rpm difference in the half-axle rotation speed? It's better than an open diff (chr**t, what isn't) but it DOES make you ruin that 'best bit' of traction by allowing initial wheelspin before it 'catches'. This seems clear from your experiments here? My view, we all ought to have electric motors in each wheel, and the ICE motor just charges a central core of batteries, and we even take the steam off the 85% wasteful thing (yup, a combustion engine makes a really good heater), and make it spin a turbine and charge batteries with that too. Then, you just punch in what you want it to synthesize - first, pretend to be a normal open diff - so it makes the wheels spin at any speed they want, just applies even electrical power. Then, we want locked 2wd or AWD, punch it in. If you have ever seen a central heating motorized valve - THAT is what we ought to have at each wheel. there, got it off my chest. Oh, and you can turn corners without using the steering wheel, just make the outer wheels turn faster than the inner ones, of the imaginary curve you want to follow. Anyway, liked your demos.
I had one of these G80 differentials in my S10. It broke some teeth off the little gear thingy do hickey. Started making annoying clicking noise and I don't think it was even working at all because I got stuck on wet grass. They aren't good for doing burnouts. If you have one and you beat on it,there's a good chance your gonna break it. It disengages after about 35mph anyway. It's alright if you're trying to pull a boat up a wet boat ramp or something that. The clutches wear out after 40-60k miles then it doesn't work that great. If your G80 is broken or worn out don't put another one in your rig. Get a Detroit true track.
True Trac is awesome, I would definitely do it front and rear in a mild 4X4. I went with Yukon Gears Duragrip because Im mostly on the street and it's better for certain ice situations ua-cam.com/video/uVxLAoJZuOo/v-deo.html
You are correct that the 8.5 ring gear is .5 inch smaller than a ford 9 inch ring gear. As far as overall strength the 9 inch center section is much stronger since the pinion has bearings that support both sides of the gear while the 8.5 pinion only has support on one side of the gear. Nice video.
+AnthonyJ350 I do not have any experience with aftermarket diff covers. From what I can tell it should add some strength to the 3rd member housing and gives the bearing caps a little extra pressure which should help decrease the chance of ring and pinion gear deflection. Usually aftermarket diff covers are a little bigger to increase the gear oil capacity, which I think is helpful. I think the people that will get the most benefit from the differential cover upgrade would be people that routinely use the axle for racing when the axle is getting very high stress loads put on it with very good traction at the wheels, like drag racing. That is my 2 cents for what it is worth.
I always invest in the axles first, tires,gears,and selectable lockers, I even went w/Trailready beadlocks on my last project(a long wheelbase Ram).I pull a camper on the beach every year and Ive been stuck,and I hate to see others stuck,I always offer to help, but if its a big turbodiesel "Dually" I always chuckle a little. Itzagas w/a stick. Great video & explanation to offer others, now u should do a Wastegate & Blowoff valve difference for them?
I realize that I was commenting cause Diesel owners think they have the tuffest rigs out there , diesel engines are usually heaveier though (ISX-15Litre)
For domestic full size trucks they say some slip is neccessary to convert traction however limited slip vs fully locking; Having fully locking is more ideal for icy & snow to extreme tractionless scenarios. From full size pickups to even mid size G80 locking differential is considered to be the most preffered bec it locks completely at specified speeds detecting wheel spin & loss of traction. however nowadays they have electronic locking vs mechanical locking types. Getrag difs for example are predominantly electronically controlled however depending on the application electronic locking difs allow faster lockup & overall traction control where as mechanical lockers are more reliable. The issue with most electronic lockers especially used on full size trucks are that some owners forget to service fluids in their diff causing overheating & failure internally. That takes place during overloading above payload or pulling above manufacturer SAE certified recommended tow or hauling levels. As long as with most electronic controlled diffs this is serviced regularily or specific type of fluids are used for extended life before draining & refilling there should be no problem however with that being said G80 lockee is more than likely the most ideal diff & preferred in any full sizer nowadays. It has the least slippage however in extreme weather conditions G80 equipped with 4wd is preferred.
Hi, I just bought 1996 Chevy Z71 1500 with the 6.5 diesel in it and it came with the G80. I was wondering if it would hurt it if I was drifting corners on dirt roads and on lakes in the winter? Also what kind of gear oil should be in it?
It doesn't have clutches like a limited slip unit, it's a full mechanical locker, so you can use a quality synthetic gear oil with the appropriate weight. I just buy some from a credible transmission shop. Most shops will only charge you around 100 bucks and they deal with the mess and it's something you don't have to change often anyways. As for drifting it at speed, it's kind of hard because it only wants to engage at low speeds (under 30MP/H). You can slide it around at low speeds as I did in the video but that's about it. In my experience at higher speeds it's a little unpredictable and probably not good for it so I would try not to. If you're looking for an upgrade look into Eaton's TrueTrac.
I have the exact same truck, have you had any problems climbing in snow and a little bit of ice on a dirt road? I have Michelin LTX. Thanks, great video!
A friend of mine has a 1992 Buick Roadmaster Wagon.. Guess what It has Eaton G 80. I was nearly floored when i looked at the RPO placard near the pass side tailgate of the wagon.
Either adapt ya driving so ya dont destroy it or remove and replace with a Eaton Truetrack limited slip which is what i reccomend. The truetrack is clutchless and is an all gear limited slip with no weird helical clutches to wear out and locking hooks to snap off or springs to break
good for you man glad it worked out. I gave up on clutch pack lsd's long ago the new generation of clutchless diffs are just leaps and bounds over anything else.
TheDman216 I went clutch because depending on how you set it, it can be more aggressive than helical. I also like I won't have to left foot brake in certain icy conditions. The wet grip on the street is much better than the G80 since it's always engaged. My 350Z I have a hellical gear style LSD installed.
No I haven't. I think mine was put together tighter from factory or something. When I make tight turns in a parking lot it always chirps like it's partially engaged. Truck has 190,000km on it now.
Not to split hairs but unless you put an 8.5 in your truck what you have is an 8.6 which started in late 99, 8.5 was early 99 and prior, there's not a ton of difference but they are different; carrier journals,carrier bearings, and backing plate flanges for the most part
Thanks! If you look at my car video playlist and click on the "Interceptor Prologue" video you can see the truck with the other set of rims. They really set off the truck.
Well I have to say those things so you're aware. Butttt it's my truck and I still have to have fun in it when I make these videos. If I break it, it's my own problem. I just want people to be aware of both sides of the coin. I think that's fair.
@SnowBladerX That's cool. If this thing ever breaks I'm probably going to throw in an Eaton Truetrac. Like I mention in the video it is a low speed traction device, and I know where it's ok to spool it up, cause in snow or wet pavement it'll never get enough grip to grenade itself. On dry dirt probably would hurt it pretty bad. All I know is, this is what came in the truck, it's working and if it breaks, oh well. Do I condone behavior in my vid, not really but I'm having fun with it :)
ok i did a little ditch twist. I went thru it and one wheel spun but after i backed up and backed up some and then went to go and it pushed my car out of the ditch. I have a 1997 Volvo S90 IRS RWD. It has a sticker and it says 3.73 1055 and i looked up 1055 type and it said Eaton Locking Differential
+Daniel McDaniels Might have one. I'm unfamiliar with that unit. Did you try calling the dealer to get some more info on your vehicle? You can just tell them the VIN and they can tell you what it was equipped with.
selective air lockers are bomb thats what i got on my 71 ford e100 clubwaggon with a 347stroker and 88mm turbo setup, 1200whp 1200ftlb of torque at 32psi of boost, 3 speed on the tree and a ford 9 inch you want posi just press a botton and boom both rear wheels spin the same no mater what all the time want to turn them off when your not doing burn outs racing and drifting just press the botton dont know why peaple dont use this more i always see welded diffs and limited slip barley ever see setups like mine this setup makes the most sense to me, g80 is always engaging and disengageing becouse its automatic witch makes no sense it should be selectable
little off topic but I just came across your channel (wish i found it long ago) but i have an '01 gmc sierra 4wd, when im in 4 auto or even 4hi / low i get a good clunk sound, almost sounds and feels like it's from the transfer case. my rear u-joints are new but my front u-joint off the transfer case is not and when i grab the front drive shaft it has a good amount of play. also when going from drive to reverse and vise versa, i get a long rattle or grinding noise. what would be causing these?
AnthonyJ350 I have no idea, My plan was to re-do all my fluids when the weather got nicer. do you think the wrong fluid got put in the t-case. i know it's a dealer only trac II fluid correct?
burtonkidd I would have a shop check it out and make sure it doesn't need adjustment. Some left the factory perfect others need adjustment. Mine doesn't make any noise during regular driving except on really tight turns you can hear the tires. Also they can check for wear as well when they get in there.
AnthonyJ350 i know that the full sized GM sedans/wagons 91-96 had the g80 for an option, that's pretty much the same as whats in your trucks rear end maybe?, the g80 then is the same g80 nowadays? im not a posi expert, had to ask.
Ok so i know the g80 locker is a low speed device and it engages at low speed. My question is when it acts like an open rear end until 100rpm difference. Is it a limited slip once locked?
+Daniel McDaniels If it's not engaged it will just act like an open diff. I've driven the truck hard when it's a little slick out and my 1-2 shift is pretty aggressive with all the transmission work. If it breaks traction at higher speed typically just one tire spins. Which is what you want because in those situations you have more control.
The way I drive, the G 80 will last and it will be about all Id need for the amount of off roading I actually see, but good to know its there when you need it.
+Skeefoo Panama Look up the G80. I don't feel like explaining it again. If you don't believe me, write a concerned e-mail to EATON. I'll tell you it only engages when it sees a difference in a 100RPM between both wheels. Some situations it will act like an open diff.
This is factory equipment and a lot of GM trucks have it from the factory. I'm actually now running an aftermarket clutch based LSD in the truck if you want to see how it performs. ua-cam.com/video/uVxLAoJZuOo/v-deo.html
The G80 is better at low speed especially when you need true lock up. The Duragrip is nicer just making turns on or offroad and you don't care about beating up the Dura Grip when on pavement. Also the Duragrip is better on wet pavement because it's always engaged and is much more predictable. So depends on how you see yourself using your vehicle.
They're actually Timbren load cushions. Works really well when loaded. If you set them up too close to the axle the ride is a bit bumpy. I also run the RoadMaster Active suspension in conjunction with them and an extra leaf spring.
+Jay H I would assume stronger because the axles are bigger in yours but I have no idea. I'd call the dealer with you VIN and ask if the part numbers are the same between the 1500 and 2500HD.
Just that diff cover with the bearing caps to helps hold the internals in place when it's under load. And some good fluid. That's all you need unless you're pushing big power.
I have an 02' Blazer ZR2 & that G80 does great in the sand at low speeds. It does lock up hard! If you jack up that rear & put it in neutral. That passenger side wheel will spin & bam! That drivers side is locked up, then unlocks & it'll lock back up again & repeat. I have 300k miles on mine. I think they are better on a 4x4. My ZR2 will go just about anywhere a Jeep Wrangler will go.
my Tahoe makes a noticeable clunk when the locker engages is that normal? and I don't abuse it... if its going to spin I take it easy until I know its engaged..
+mikie4824 Ya they do make a clunk. If you go really slow you hear it, it's normal. I would just check the fluid level in the diff and you should be fine. If you have a lot of miles on the differential maybe consider getting the fluid changed.
John Hanson oowh I'm not gonna argue with you if it was GM the source of all that nagging going on and on about how to keep your rear end in good shape thx man unlike others that kept on trolling me and seemed as if they didn't even know what I was asking about and all they cared for was trolling what a bunch of kids they are..
***** No problem. After reading my comment, I hope I didn't come off as a jerk, definitely not trying to be. Just get tired off all the misinformation running around out there. If I came off as a pompous jerk, sorry about that.
Got a 95 chevy 2wd and id like to find a locker for it or just a limited slip carrier. i have no idea what the gear ratio is because the glove box tag is missing. what should i do to get a locker? its an 8.5", would the same one you got work? thanks!
I have an 05 silverado single cab 4.3 vortec with an open diff rear end. i was wondering if there was any option of putting a locking rear on the v6 truck? would it bolt in the same? sick and tired of not having traction haha
+Landon ross Yeah man, the G80 10 bolt rear end from any half ton truck will bolt in just like yours does direct swap, easiest thing to upgrade is swapping rear ends, will only take you a couple of hours and pretty cheap from junkyard, change the fluid while you're at it.
The driveline should hook up, hell, it's literally the same rear end, yours just doesn't have the locker, but, don't take my word for it, take measurements yourself and compare them to junkyard stuff with the locker.
gotcha, it may even be easier to just swap the differentials out instead of removing the entire rear axle assembly. ill do some more research. thanks man.
See the G80 again in action here: ua-cam.com/video/kGNYn5gTpMg/v-deo.html
Ya 2WD trucks do have their limitations, but with a locker and good driving skills you can surprise a lot of people. But don't even pay attention to people like that, if you've built a good rig yourself and you're proud of it that's all that matters.
What you said at the end of this video is pure gold. People don't understand how important good tires really are. My dad has a 4wd Silverado and he recently got new tires and before he'd spin the tires so easily going uphill on wet pavement, now he has no problems. I applaud you on explaining that haha
+TrapBird (Camaro Girl) Thank you!
This is most ASSUREDLY the absolute best video EVER made concerning and explaining the G80! In fact, this is probably the best video ever made PERIOD explaining ANY mechanical aspect of ANY vehicle!
WELL DONE SIR JUST WELL DAMN DONE!!!!!
I am in complete AWE after watching this and the entire time it was unfolding in front of my eyes I couldn’t believe what I was watching. I couldn’t believe someone had actually taken the time to do what you did! I was shell shocked to be honest.
I am equally as stunned at the lack of views this video has garnered considering the sheer amount of arguing and misinformation being spread over the last 20 years when ALL of the answers could be found right here!!!
You should have 1,000,000+ views easy!!! I am going to do my part and plaster this video everywhere I can and I can only hope it snowballs out of control and you get rich beyond your wildest dreams because of it!
If so, you would absolutely deserve it!!!
Just an incredible video my friend, just well above and beyond anything I have ever watched :)
So glad to hear you enjoyed the video!
Thanks for the video! The G80 is a solid traction device, if you don't subject it to explosive shock. They can't handle drag racing or higher horsepower power-plants. With that being said, they are great for a daily driver; I have one in my 86' two wheel drive C10 Chevy and it has saved me during a few bad winter storms. Again... I enjoyed the various driving conditions that you demonstrated the G80 in...!
Thank you!
fabulous demonstration for those of us that are not gear heads, but own a GMC HD!!! Nice job, thank you.
I have a G80 in '93 4x4 Sonoma. It works for what it's intended for. It's gotten me out of several iffy situations when it snowed here in WA last year. I'm impressed by it.
First differential video I didn't fast forward in a long time! Nice!
That's awesome! I have some other updated ones you should check out.
My chevy silverado with g80 2wd will do things my ford 4wd can't. Merry Christmas.
Thats cause u have an open diff ford. Sucks for you
+xXTHECARGUYXx Try the Ford again, this time with the parking brake on. ;)
l337pwnage I do that on my grandmothers 2wd 5speed open diff 93 f150 whenever I have the displeasure of getting caught in the snow in it
But your Ford has no posi either front or rear.
So you get a left front and right rear spin. Stuck.
Try mine with posi on both ends.
No it doesnt
The only wrong here is not inviting others to join in the fun. Great video.
I got a whole g80 rear end out of a junk yard got 120 bucks which I think is a steal for me and the fact that my 10 bolt open diff I have ate the spider gears.. Put a new set of spider gears in and the main center pin broke and wrecked the whole rear end.. So gettong a 10 bolt g80 for that much was great.. It has got me through freshly ripped ground for a new subdivision that was nothing but mud.. I cruised right on by my co worker who was stuck in his 4x4.. like you said in the video momentum got me through. My dad taught me about that before I was even old enough to drive.. If you know what you are driving through and it's safe to hit it hard and stay in the gas do so! My coworker was pissed that my 2wd 1500 5.3 pulled him out of the same mud i crawled right on through.. In fact I've surprised a lot of people with my ole girl.. Shit my truck has surprised the hell outa me a few times.. She's never left me stuck.. I give that to knowing how to drive in mud and the g80 rear end. I've heard a lot of bad things about the g80 but so far it's been good to me. I don't mess around when it's dry but if the roads are wet I like to have fun sometimes
G80 is a great unit in a 2WD truck. Sounds like you know the limitations of your truck and you don't put it in situations where you know it will get stuck easily.
@@AnthonyJ350 i just hate the noise and feeling it makes when it locks up
This particular locker is available from factory with a lot of GM trucks. If you're looking for something like it I'd go talk to your local transmission shop and see what they recommend. I like Eaton products in general, I had an LSD unit in my Camaro and I loved it.
The fact that you have a 2WD drive and were able to treat it like it was a 4X4 truck is cool! Any update since the creation of the video?
I have this video. The truck definitely has its limitations, but it works for me ua-cam.com/video/uVxLAoJZuOo/v-deo.html
My friend has a 1999 GMC Safari SLE with all-wheel drive and the G80 locker! Absolute beast in the snow!
Damn I love the safari / astro vans! they are the toughest vans ever.....
they are good diffs if taken care and used within their limits
@@Dman216 - So, like pretty much every thing, ever made...
your best friend when offroading is a really tough winch, because 9 times outa 10 common sense goes right out the window
I know I'm late to the party by a cple years, but' I live in N.E and never owned 4x4 til recent, (only because I needed a new truck), I never got stuck or stranded, good driving sense is perfectly worded.
Hey thanks for watching and taking the time to share your experience!
Had this on my 05 GMC Sierra. I used to play with that all the time, no I never beat on it, I would just stop on a hill that hadn't been plowed from the snow yet. I traded it in in May for a 2015 Off Road Tacoma with a electronic locking Diff. We'll see how it works out this winter. Thanks for the video
+jel517 Thanks for your comment
Do you find the turning radius is compromised with Detroit locker? (As far as daily drivers go) wouldn't the TruTrac be a better choice?
On my 2005 Colorado is had the RPO code YD3, which said that is the driver selectable locking read differential. But the selecting must be automatic because I do not have a button or a switch. Mine is crew cab and 4x4.
I think only Hummer H2's had the button for the selectable locker.
Just picked up an old gem from 2008 with locking rear diff.....thanks for making a video doing all the shit I don't plan on attempting lol. Grew up in the 1990s driving shitty S10 pick ups in snowy Michigan, so I should be able to get through mild central Ohio winters if you're doing all that.
Ya just wanted to give people an idea for capabilities and limitations 🙂
@@AnthonyJ350 it's also amazing what a few sand bags and dropping into first or second gear does for snowy conditions. Technology is great, but skill is always handy
@@porkchop10 I agree, also depends on application of the vehicle.
@@porkchop10 You might also like this video ua-cam.com/video/uVxLAoJZuOo/v-deo.html
All 2wd trucks should come with a rear locker. A 2wd truck with a locker would be much better in the snow
It's been a great locker for sane use and not overly abusive burnouts, but I do agree, for fast corners and drifting, it's not the right piece of equipment. I don't intend to swap it out, but if I did, I'd go for a detroit locker. Yes, they ratchet, but they also work on ice, unlike an eaton true-trac. With tires no bigger than 255, I think you can also use the 10-bolt for a lot of abuse.
I know! When you try to slide the truck it acts like an open diff half the time (except in the snow). Very unpredictable at speed, but it's not designed for that.
awkward moment when you are driving a chevy in 2wd and you go through holes that fords and dodges cant do in 4wd.
Hahaha, can't say I haven't had that pleasure yet.
AnthonyJ350 ya i did it in my 5 tonne truck that 2wd.
No Trent, you didn't. And I'm a Chevy guy. There is no rear and in a 2wd that is going to out mud a truck with 4wd. Sorry. I have a g80 in mine. I know what I'm talking about.
where i go fishing most guys have to use 4wd to get the boats out of the water, my 4wd doesnt work and the lockers in the rear really help out when pulling the boat.
Steve. You don't know. A combo of a driver that really knows there rig can out drive the best rig and rookie driver. Or great driver that doesn't know the rig. I have multi 4x4 full size trucks and drive allot. But my 04 dakota in 2wd stock did better that allot of 4wd. Never over generalize on a public forum. I have g80 in the 1500 hd, 87 has LSD front and back, other 2 k10 are bone stock.
The G80 works so well I never NEED 4wd even during Michigan winters. The truck just walks through everything.
What tires do you run? And how mich weight do you put in the back?
Got a g80 on my 97 z71. It makes a huge difference. I ride on trails and on the beach so it works great for me.
Hell yeah *****. Mine is tough as hell. Now, I wouldn't put one wheel on the mud and one on concrete, rev the motor to 6000 and dump it from park to drive, but it will take a LOT of abuse. I don't beat my truck now, I've rebuilt all the old stuff and now I trail ride and go fairly easy... Take it easy man.
Man, you put that Silverado through its paces! Cool video!
Ya the truck serves me well. I'm in year 8 of owner ship. I can't even consider getting a newer one cause it drives so good and I don't have a payment! Here's a video with everything done to the truck. ua-cam.com/video/Rxh7MVXQSPU/v-deo.html
Great video, thanks for taking the time to talk about the G80 and show some demonstrations
Thanks for watching!
Good driving through the mud! Sadly I know people with lifted 4x4s that would get stuck in that
Thanks!
for being 2wd with diff lockers it seems good no matter where you take it
Ya it is. It's very limited in muddy conditions so you have to be a smart driver. Like don't go into deep mud with it lol.
I had a two wheel drive Silverado and when we had a bad ice storm I could go up hills with no problem when guys with four wheel drive were having all kinds of problems . Now I know why ! Also the truck just had regular all season tires on it .
Thanks for sharing your experience! It's amazing what a traction device like this and some driver skill are able to do.
You put a lot of work into this YT video. Thank you. The real-world examples are fantastic. You did way more to your G80 than I do to mine as it is a practical addition (I ordered it that way) to my K2500 Suburban as I have a ranch that is many, many miles off of paved roads and there are lots of washouts. I would think some aftermarket companies would be selling different counterweights to allow the G80 to engage sooner or stay engaged longer.
Is there such a thing??
Not that I know of. I actually recently had the G80 swapped for a traditional clutch style LSD. I gave up a little bit of lock up ability but gained more predictably and better street performance because it's always engaged.
ua-cam.com/video/uVxLAoJZuOo/v-deo.html
i've never had a big enough bank account to be able to afford to abuse anything. the G80 is an absolute must. a truck without it to me is almost worthless.
I have a 4wd gmc that has the g80, with all terrain tires it is a beast, can't wait to get some deep snow to play in with it, I won't be drifting it or doing burnouts though I don't want to risk grenading the rear end.
Samuel Clark I believe the G80 is still being used in the newer GM trucks as well.
AnthonyJ350 yeah they still offer them my truck is a 2012, they're still an option on the 2018s, idk about the 2019, they're doing a major redisign, you should look up the 2019 silverado if you haven't already. I have mixed feelings about it.
Samuel Clark I agree with the shorter overhangs. Looks like a Ram and F150 put together. I'm interested to see if they do direct injection again or if they do the design with port and direct injection.
AnthonyJ350 I just hope they keep the 4.3s and 5.3s around, they are reliable, wouldn't mind seeing a turbo v6 option to compete with the ecoboost
Samuel Clark Ya me too
Great video, thanks. You were applying some power there. I honestly don't understand how this G80 mechanism lasts 5 minutes. That little centrifugal device is locking the spider gears INSTANTLY. What is stopping these things from immediately exploding all the time?
Dave F. in RI
I don't know but GM has put them in A LOT of trucks. So for the average user it seems to be more than enough. I definitely push it harder than the "official" demonstration videos. But I'm pretty sure this one is the most fun to watch.
I’ve had trucks with both these and a Detroit locker in the rear. The G80 is a great stock differential although after having the Detroit for years there is just no comparison. The Detroit locks up so instantaneous, you’d never even know. But for a stock type locker, the G80 is definitely appreciated.
The G80 for sure is a great unit, it does a lot in low traction situations and is installed in millions of trucks. But we can't expect it to be as durable as a Detroit Locker. The G80 is fine for 90% of people out there.
Which Detroit? The trutrac?
@@805BeachRecoveries No, the actual Detroit locker.
@@AnthonyJ350 absolutely agree.
Reason I asked is I was under the impression the Detroit locker was a full time locker? So it shouldn't need to lock up, right?
You may not know this answer because it’s many years ahead of this video, but I have a 2020 gmc savana 2500 6.0 Gas with stabilitrak and traction control. How does the G80 work in conjunction with that? Do you have to manually disengage it or does it do it automatically every time it engages? I’m naturally assuming it has to disengage, I can’t imagine it engaging with traction control limiting the spin :)
Should be fully automatic still
Good video, with quality information in the narrative. Personally, I'm a Ford guy but your Silverado sounds terrific and goes really well. Nice truck!
Thank you!
I'll check this out. But I had great fun on my old 02 1500 2wd. My only regret (or salvation) was not resetting the speed limiter. That LM7 wanted to keep going, and quickly.
What's the lm7?
+brad brown 5.3l V8.
+high life 1320 o true that. Thanks. they are super powerful and reliable. my uncle has a 03 gmc sierra z71. with 276k miles with original 5.3.
Would you consider "Up Hill on Mud" within the working parameters of the G80 or abuse of it? Thank you.
Ya should be fine. G80s in half tons trucks will most likely see damage on pavement where there can be a sudden amount of traction. Offroad scenarios with modest throttle input I would say are fine.
Really good video, you're pretty thorough, methodical, easy to digest this way, thanks. As I was watching, contemplated what it makes happen - my view is, the 'best traction' point in a muddy situation where say, you just parked up and have to start off, is right then and there, ie before you ruin the turf under your drive wheels by spinning them.
Now what this diff does, it locks when there is 100 rpm difference in the half-axle rotation speed? It's better than an open diff (chr**t, what isn't) but it DOES make you ruin that 'best bit' of traction by allowing initial wheelspin before it 'catches'. This seems clear from your experiments here?
My view, we all ought to have electric motors in each wheel, and the ICE motor just charges a central core of batteries, and we even take the steam off the 85% wasteful thing (yup, a combustion engine makes a really good heater), and make it spin a turbine and charge batteries with that too.
Then, you just punch in what you want it to synthesize - first, pretend to be a normal open diff - so it makes the wheels spin at any speed they want, just applies even electrical power. Then, we want locked 2wd or AWD, punch it in. If you have ever seen a central heating motorized valve - THAT is what we ought to have at each wheel.
there, got it off my chest. Oh, and you can turn corners without using the steering wheel, just make the outer wheels turn faster than the inner ones, of the imaginary curve you want to follow. Anyway, liked your demos.
Thanks for sharing your insight on things
I am and always have been a hardcore Ford guy. But I can honestly say, nice truck man. Looks and sounds good. 👍
Widowmakermowers Pennsylvania Thanks! Still have it, we just changed out all the cab mounts.
Great driving skills!!!!! Now was that a demo of abusing that diff or were those demos of how it was intended to be used?
Anything low speed was how it was intended to be used. Anything high speed was abuse.
I have the 9.5 simifloat version. Good luck on breaking that. The 3/4 ton HD Silverado's have all the good parts.
Good to know! I plan to get a 3/4 ton for my next truck.
I had one of these G80 differentials in my S10. It broke some teeth off the little gear thingy do hickey. Started making annoying clicking noise and I don't think it was even working at all because I got stuck on wet grass. They aren't good for doing burnouts. If you have one and you beat on it,there's a good chance your gonna break it. It disengages after about 35mph anyway. It's alright if you're trying to pull a boat up a wet boat ramp or something that. The clutches wear out after 40-60k miles then it doesn't work that great. If your G80 is broken or worn out don't put another one in your rig. Get a Detroit true track.
True Trac is awesome, I would definitely do it front and rear in a mild 4X4. I went with Yukon Gears Duragrip because Im mostly on the street and it's better for certain ice situations ua-cam.com/video/uVxLAoJZuOo/v-deo.html
You are correct that the 8.5 ring gear is .5 inch smaller than a ford 9 inch ring gear. As far as overall strength the 9 inch center section is much stronger since the pinion has bearings that support both sides of the gear while the 8.5 pinion only has support on one side of the gear. Nice video.
+flapjackthemermaid Thanks. Does it help that I run a T/A diff cover that has bearing caps for support though? As opposed to the stock stamped piece.
+AnthonyJ350 I do not have any experience with aftermarket diff covers. From what I can tell it should add some strength to the 3rd member housing and gives the bearing caps a little extra pressure which should help decrease the chance of ring and pinion gear deflection. Usually aftermarket diff covers are a little bigger to increase the gear oil capacity, which I think is helpful. I think the people that will get the most benefit from the differential cover upgrade would be people that routinely use the axle for racing when the axle is getting very high stress loads put on it with very good traction at the wheels, like drag racing. That is my 2 cents for what it is worth.
I always invest in the axles first, tires,gears,and selectable lockers, I even went w/Trailready beadlocks on my last project(a long wheelbase Ram).I pull a camper on the beach every year and Ive been stuck,and I hate to see others stuck,I always offer to help, but if its a big turbodiesel "Dually" I always chuckle a little. Itzagas w/a stick. Great video & explanation to offer others, now u should do a Wastegate & Blowoff valve difference for them?
+forcefed38 That's a good suggestion for a future video.
I realize that I was commenting cause Diesel owners think they have the tuffest rigs out there , diesel engines are usually heaveier though (ISX-15Litre)
For domestic full size trucks they say some slip is neccessary to convert traction however limited slip vs fully locking; Having fully locking is more ideal for icy & snow to extreme tractionless scenarios.
From full size pickups to even mid size G80 locking differential is considered to be the most preffered bec it locks completely at specified speeds detecting wheel spin & loss of traction.
however nowadays they have electronic locking vs mechanical locking types.
Getrag difs for example are predominantly electronically controlled however depending on the application electronic locking difs allow faster lockup & overall traction control where as mechanical lockers are more reliable.
The issue with most electronic lockers especially used on full size trucks are that some owners forget to service fluids in their diff causing overheating & failure internally.
That takes place during overloading above payload or pulling above manufacturer SAE certified recommended tow or hauling levels.
As long as with most electronic controlled diffs this is serviced regularily or specific type of fluids are used for extended life before draining & refilling there should be no problem however with that being said G80 lockee is more than likely the most ideal diff & preferred in any full sizer nowadays.
It has the least slippage however in extreme weather conditions G80 equipped with 4wd is preferred.
+Muhammad M Salaam True that. ive have a 2wd mechanical g80. Better than having just an open diff. You know your stuff a lot of people dont
Hi, I just bought 1996 Chevy Z71 1500 with the 6.5 diesel in it and it came with the G80. I was wondering if it would hurt it if I was drifting corners on dirt roads and on lakes in the winter? Also what kind of gear oil should be in it?
It doesn't have clutches like a limited slip unit, it's a full mechanical locker, so you can use a quality synthetic gear oil with the appropriate weight. I just buy some from a credible transmission shop. Most shops will only charge you around 100 bucks and they deal with the mess and it's something you don't have to change often anyways.
As for drifting it at speed, it's kind of hard because it only wants to engage at low speeds (under 30MP/H). You can slide it around at low speeds as I did in the video but that's about it. In my experience at higher speeds it's a little unpredictable and probably not good for it so I would try not to. If you're looking for an upgrade look into Eaton's TrueTrac.
I have the exact same truck, have you had any problems climbing in snow and a little bit of ice on a dirt road? I have Michelin LTX. Thanks, great video!
Not really cause I put a little weight in the back and now I run winter tires with studs in the winter season.
A friend of mine has a 1992 Buick Roadmaster Wagon.. Guess what It has Eaton G 80. I was nearly floored when i looked at the RPO placard near the pass side tailgate of the wagon.
It must be decent in the snow if he puts winter tires on it with some weight in the back.
Ya it was. Got it pretty stuck initially in that uphill mud scene lol. That rwd civic of your is pretty killer btw!
Their is 194 bulbs at the bottom most 03 and up have them my 06 alternate but when I got the truck the bulbs were out
the very last thing you said is absolutely true nice ram-bar on the front.
+Grant Carter Thanks!
so how dose this work is it full time locked so tyres skuff when turning. or is it more like a lsd that locks when it feels lots of slip cheers
How did you get your tail lights to alternate between the brake bulb and the marker bulb when flashing?
92MikeKY It's just how the truck work from factory when the parking lights are on.
Either adapt ya driving so ya dont destroy it or remove and replace with a Eaton Truetrack limited slip which is what i reccomend. The truetrack is clutchless and is an all gear limited slip with no weird helical clutches to wear out and locking hooks to snap off or springs to break
TheDman216 After 9 years of service with the G80 problem free, we changed to a 3.73 ring gear and a Yukon Gear duragrip clutch style LSD.
good for you man glad it worked out. I gave up on clutch pack lsd's long ago the new generation of clutchless diffs are just leaps and bounds over anything else.
TheDman216 I went clutch because depending on how you set it, it can be more aggressive than helical. I also like I won't have to left foot brake in certain icy conditions. The wet grip on the street is much better than the G80 since it's always engaged.
My 350Z I have a hellical gear style LSD installed.
Thanks! It's got JBA headers & Magnaflow exhaust on it with a K&N FIPK.
you ever notice on a hill if youre turning from a stop it will clunk. few times before engaging? mine does. never does on flat just while turning
No I haven't. I think mine was put together tighter from factory or something. When I make tight turns in a parking lot it always chirps like it's partially engaged. Truck has 190,000km on it now.
Not to split hairs but unless you put an 8.5 in your truck what you have is an 8.6 which started in late 99, 8.5 was early 99 and prior, there's not a ton of difference but they are different; carrier journals,carrier bearings, and backing plate flanges for the most part
what is the G80 used for like mudding
Looks like you had lots of fun making this video!
It definitely was!
Thanks! If you look at my car video playlist and click on the "Interceptor Prologue" video you can see the truck with the other set of rims. They really set off the truck.
Well I have to say those things so you're aware. Butttt it's my truck and I still have to have fun in it when I make these videos. If I break it, it's my own problem. I just want people to be aware of both sides of the coin. I think that's fair.
@SnowBladerX That's cool. If this thing ever breaks I'm probably going to throw in an Eaton Truetrac. Like I mention in the video it is a low speed traction device, and I know where it's ok to spool it up, cause in snow or wet pavement it'll never get enough grip to grenade itself. On dry dirt probably would hurt it pretty bad. All I know is, this is what came in the truck, it's working and if it breaks, oh well. Do I condone behavior in my vid, not really but I'm having fun with it :)
ok i did a little ditch twist. I went thru it and one wheel spun but after i backed up and backed up some and then went to go and it pushed my car out of the ditch. I have a 1997 Volvo S90 IRS RWD. It has a sticker and it says 3.73 1055 and i looked up 1055 type and it said Eaton Locking Differential
+Daniel McDaniels Might have one. I'm unfamiliar with that unit. Did you try calling the dealer to get some more info on your vehicle? You can just tell them the VIN and they can tell you what it was equipped with.
selective air lockers are bomb thats what i got on my 71 ford e100 clubwaggon with a 347stroker and 88mm turbo setup, 1200whp 1200ftlb of torque at 32psi of boost, 3 speed on the tree and a ford 9 inch you want posi just press a botton and boom both rear wheels spin the same no mater what all the time want to turn them off when your not doing burn outs racing and drifting just press the botton dont know why peaple dont use this more i always see welded diffs and limited slip barley ever see setups like mine this setup makes the most sense to me, g80 is always engaging and disengageing becouse its automatic witch makes no sense it should be selectable
I'm just in the middle of a Diablo Sport video, there's an awesome brake stand in it, and one of my "Angels" also guest stars in it ;) Stay tuned!
We have this on our 2015 4wd Dually works great towing across the sand dunes.
Nice!
and with this locker is it bad to step on it? or do burnouts
little off topic but I just came across your channel (wish i found it long ago)
but i have an '01 gmc sierra 4wd, when im in 4 auto or even 4hi / low i get a good clunk sound, almost sounds and feels like it's from the transfer case. my rear u-joints are new but my front u-joint off the transfer case is not and when i grab the front drive shaft it has a good amount of play.
also when going from drive to reverse and vise versa, i get a long rattle or grinding noise. what would be causing these?
Do you know the type of gear oil and what the viscosity is in your diff?
AnthonyJ350
I have no idea, My plan was to re-do all my fluids when the weather got nicer.
do you think the wrong fluid got put in the t-case. i know it's a dealer only trac II fluid correct?
burtonkidd I would have a shop check it out and make sure it doesn't need adjustment. Some left the factory perfect others need adjustment. Mine doesn't make any noise during regular driving except on really tight turns you can hear the tires. Also they can check for wear as well when they get in there.
AnthonyJ350
i know that the full sized GM sedans/wagons 91-96 had the g80 for an option, that's pretty much the same as whats in your trucks rear end maybe?, the g80 then is the same g80 nowadays? im not a posi expert, had to ask.
Brutal that that thing just kicks in all of a sudden..
Ok so i know the g80 locker is a low speed device and it engages at low speed. My question is when it acts like an open rear end until 100rpm difference. Is it a limited slip once locked?
+Daniel McDaniels If it's not engaged it will just act like an open diff. I've driven the truck hard when it's a little slick out and my 1-2 shift is pretty aggressive with all the transmission work. If it breaks traction at higher speed typically just one tire spins. Which is what you want because in those situations you have more control.
+AnthonyJ350 Hey should i hear the g80 engage at low speed?
Daniel McDaniels Ya they make a clunking sound when they engage.
My car's rear end vibrites shifting from 1st to 2nd gear under 10mph. Why is that? Is that how the locker engages?
The G80 only engages when there is a 100rpm difference between both wheels. Did you check the fluid level?
+AnthonyJ350 No not yet.
Did a 1992 GMC Sierra 4.3L c1500 come with a open or locker/lsd
You'll have to look at the RPO codes or check the VIN with the dealership.
The way I drive, the G 80 will last and it will be about all Id need for the amount of off roading I actually see, but good to know its there when you need it.
+Skeefoo Panama Look up the G80. I don't feel like explaining it again. If you don't believe me, write a concerned e-mail to EATON. I'll tell you it only engages when it sees a difference in a 100RPM between both wheels. Some situations it will act like an open diff.
Gorgeous Silverado
The big question is what fluid to add?
I use Redline gear oil
This is an after-market locker or is GM using these lockers standard?
This is factory equipment and a lot of GM trucks have it from the factory. I'm actually now running an aftermarket clutch based LSD in the truck if you want to see how it performs.
ua-cam.com/video/uVxLAoJZuOo/v-deo.html
How do you compare this to the yukon dura grip limited slip?
The G80 is better at low speed especially when you need true lock up. The Duragrip is nicer just making turns on or offroad and you don't care about beating up the Dura Grip when on pavement. Also the Duragrip is better on wet pavement because it's always engaged and is much more predictable. So depends on how you see yourself using your vehicle.
I see your truck has air bags how does it ride with those added
They're actually Timbren load cushions. Works really well when loaded. If you set them up too close to the axle the ride is a bit bumpy. I also run the RoadMaster Active suspension in conjunction with them and an extra leaf spring.
i have the G80 code on my gmc 2500hd 4x4. would it be a stronger version on the g80 or same one in the 1500? thanks!
+Jay H I would assume stronger because the axles are bigger in yours but I have no idea. I'd call the dealer with you VIN and ask if the part numbers are the same between the 1500 and 2500HD.
+Jay H The 2500 trucks have floating 14 bolt rear ends, the lockers would have to also be beefier than the stock 10 bolt 1500 stuff.
bdevlint1501
yeah that makes sense, i never thought of that lol.. thanks
Is this what locking diff my 2000 Yukon has?
Most likely yes
How did you strengthen the 8.5 ? 8.5 rear end is standared on silverado's right ?
Just that diff cover with the bearing caps to helps hold the internals in place when it's under load. And some good fluid. That's all you need unless you're pushing big power.
How about if you have it on a sedan and you drift around on snow and ice only? Will that break it? I've got just below 200 horsepower.
My 2015 Silverado LTZ 6.2 has the G80. It has towing package. AFM delete BTR cam LS7 lifters. She is a great truck.
Love that you did the AFM delete. It's going to be a very reliable truck.
Older video but hope someone can answer. What rear diff cover is that in the video? It's not stock. Thanks.
It's a T/A diff cover. Here's the video ua-cam.com/video/XLSchkI9hns/v-deo.html
I have an 02' Blazer ZR2 & that G80 does great in the sand at low speeds. It does lock up hard! If you jack up that rear & put it in neutral. That passenger side wheel will spin & bam! That drivers side is locked up, then unlocks & it'll lock back up again & repeat. I have 300k miles on mine. I think they are better on a 4x4. My ZR2 will go just about anywhere a Jeep Wrangler will go.
Thanks for sharing your experience!
my Tahoe makes a noticeable clunk when the locker engages is that normal? and I don't abuse it... if its going to spin I take it easy until I know its engaged..
+mikie4824 Ya they do make a clunk. If you go really slow you hear it, it's normal. I would just check the fluid level in the diff and you should be fine. If you have a lot of miles on the differential maybe consider getting the fluid changed.
+AnthonyJ350 thank you! I'm going to change it today! thanks for replying your video helped me a lot!
2016 Chevy 1500 W/T 4x2. does this kind of truck have a G80.
I think they still do. You can call your VIN to a dealer and they can verify
clayton bigsby look for the rpo code in the glove box. it will say g80
Does the G80 require LSD additive when changing the gear oil?
yes it does
don edward oh too late for that then ..
*****
Actually, NO! the G80 does not require LSD additive in the gear oil, as long as it is a TRUCK G80. There was a G80 available in cars, such as the Corvette, and that was a limited slip, not a locking differential. In fact, using LSD additive in your G80 TRUCK differential is NOT recommended, since it may delay locking action, and damage the differential. Here is the text from the GM Technical Service Bulletin: (NOT MY CONTENT, WRITTEN BY GM)
LOCKING DIFFERENTIAL LUBRICANT (SERVICE INFORMATION) #91-4-109
SUBJECT: LOCKING DIFFERENTIAL (G80) LUBRICANT - (SERVICE INFORMATION)
VEHICLES AFFECTED: ALL LIGHT TRUCKS EQUIPPED WITH G80 REAR AXLE ALL YEARS
Some light duty trucks equipped with locking rear axles (G80) may exhibit rear axle chatter, especially when turning a corner from a stop.
This condition of alternate engagement and disengagement of clutches in differential assembly is usually caused by contaminated axle lubricant.
To correct this condition, drain and refill the rear axle with SAE 80W-90 GL5 (P/N 10950849). *The use of any additive in locking rear axles (G80) is not recommended.* Rear axle additives are designed for use in limited slip differentials which are normally installed in cars. All light duty trucks equipped with RPO G80 make use of a locking differential and the use of additives will delay the engagement of the locking mechanism and may decrease axle life.
VEHICLES/COMPONENTS INVOLVED: ----------------------------- Some light duty trucks equipped with locking rear axles, RPO G80.
SERVICE PARTS INFORMATION:
Part Number Description ----------- ------------------ 10950849 Lubricant, Rear Axle (1 litre)
Parts are currently available through CANSPO.
WARRANTY INFORMATION:
As specified in Light Duty Truck Maintenance Schedules, locking rear axle fluid drain and refill is required owner maintenance at the first engine oil change. Failure to drain and refill the rear axle as specified may contribute to a later axle chatter condition. Refer to the appropriate Light Duty Truck Maintenance Schedule or service manual, section OB, for further details on change intervals.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
© Copyright General Motors Corporation. All Rights Reserved.
John Hanson oowh I'm not gonna argue with you if it was GM the source of all that nagging going on and on about how to keep your rear end in good shape thx man unlike others that kept on trolling me and seemed as if they didn't even know what I was asking about and all they cared for was trolling what a bunch of kids they are..
*****
No problem. After reading my comment, I hope I didn't come off as a jerk, definitely not trying to be. Just get tired off all the misinformation running around out there. If I came off as a pompous jerk, sorry about that.
GoRhino, it's the model they use on the police units.
It's actually a 4.8L with full exhaust.
Got a 95 chevy 2wd and id like to find a locker for it or just a limited slip carrier. i have no idea what the gear ratio is because the glove box tag is missing. what should i do to get a locker? its an 8.5", would the same one you got work? thanks!
If you're going to buy a unit look into an Eaton TrueTrac.
AnthonyJ350
Thanks!
When in 4high/4low the rear is full time locked correct?
sammy mangini No this locker is mechanical. It engages When it sees a difference of 100rpms between the rear wheels.
I don't know anything on lockers.. But I want to haul ass in the desert with a locker.. What kind of locker should I get?
Get a Posi rear end instead.
vezap he'll love that haha
LoL yea I don't think so. ARB locker is what i'm going to be getting.
You're a good driver. Good job.
Thank you!
Would you recommend the g80 for occasional snow drifting? Or should I go with an Lsd?
Supralars Snow drifting LSD is way more predictable. Either an Eaton Trutrac or Yukon Duragrip. I just put a Duragrip in my truck recently.
Good explanation, great video,and nice job handling that truck,keep the great job.
Thanks for watching!
On a Titan the locker can't be used at high speeds it disengages
why can this one be broken?
+David Stanley G80's will not engage at high speeds, I'm not sure how easy they unlock after they are engaged at low speeds, though.
+David Stanley d
+David Stanley You'd have to completely beat the shit out of it to break it, I absolutely abused all of mine and never hurt anything.
I have an 05 silverado single cab 4.3 vortec with an open diff rear end. i was wondering if there was any option of putting a locking rear on the v6 truck? would it bolt in the same? sick and tired of not having traction haha
+Landon ross Get Eaton's Truetrac LSD.
+Landon ross Yeah man, the G80 10 bolt rear end from any half ton truck will bolt in just like yours does direct swap, easiest thing to upgrade is swapping rear ends, will only take you a couple of hours and pretty cheap from junkyard, change the fluid while you're at it.
+bdevlint1501 thanks man, i diddnt know if they had the same rear driveshaft flange, ill definetely see if i can find a good rear end
The driveline should hook up, hell, it's literally the same rear end, yours just doesn't have the locker, but, don't take my word for it, take measurements yourself and compare them to junkyard stuff with the locker.
gotcha, it may even be easier to just swap the differentials out instead of removing the entire rear axle assembly. ill do some more research. thanks man.
Needs a 14 bolt full floater, with 4:56 gears and Detroit locker
+PranklinMaltese On a bone stock 1500? seems way overboard.
+231mac ex army 1985 m1008
PranklinMaltese'nuff said.
Yeah so the rear diff will drag the ground. Those are the worst you can install for ground clearance.