Jeep JL Wrangler 5.13 Gears - Is a Re-Gear Needed with 37 Inch Tires? OP ED
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- Опубліковано 14 жов 2024
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I get a lot of people asking me a ton of questions on a regular basis and rather than let them get lost somewhere in cyberspace, Cindy and I decided to start answering them on our UA-cam channel and in an all new series we're calling, OP ED. Essentially, we'll be creating videos where you'll get to hear exactly what I think and get my 2¢ on all sorts of topics regarding Jeeps and all based on the questions I've been getting. In this very first episode of OP ED, I'll be taking on the question of, "do I need to re-gear my JL Wrangler with 37" tires?" As an added BONUS, you'll even get to see something special, a kind of easter egg and totally unrelated to gears or tires, if you stick around to the very end. We hope you enjoy.
This was a huge decision when I upgraded the axles in the JK sport. And at the time, I wish there was a video or at least info from a source I trusted that also had real world testing and evaluation. Stoked to see this now and for the JL. Mel looked like a kid who woke up on Christmas before everyone else. Great stuff!
Well, we're glad that we can share stuff like this with you now :)
@Zaiden Curtis yuh well... nobody does so. Fuck off
I love the editing of these videos. It truly is a work of art.
Glad you enjoy our videos 😎
In 4th gear at 70, you were at roughly 5500rpm, so it does make sense that it won't downshift to 4th when you are at 70. There is so little rpm range it would have to immediately shift into 5th. Was cool to see mono lake, love that area!
Yes, it makes sense but it'd be nice to get just a bit more power before deciding to throttle back. Oh, and this is Walker Lake :)
Wayalife Ahh, ok. Similar looks for the windshield view. Both are cool areas.
Great job explaining the pros and cons of going with 5.13's in an objective manner.
Glad you found it to be informative :)
Eddie,
I went with the 4:88s 5 to 6 months ago. When I did the lift and 37s. I researched it and found that 4:56s were the closest to stock, being slightly taller than stock. Then I drove friends with 4:10 with 37s. Decided with the heavier loads that the 4:88s would be slightly lower and be my choice to move the extra weight and load. Happy with choice. However, I am contemplating D60s with 5:38s and 40s due to clearance issues crawling still one of my complaints. Happy Trails and stay safe. Looking forward to Gladiator stuff.
5.38 are what we run in our JK with 40's but I personally am not so sure it'd be what I'd want on a JL with a 8-speed auto. At least, based on what I've seen.
@Jeff Riley do you get back 8th gear with 4:88 on 37" tires
Thanks for taking us to go see Mel and the Taco Killer ! Can’t wait to see it in action.
LOL! Hope to get you more videos soon :)
We running 40 tires with dana 60 axels floating axels front and rear lockers. We had the 513 gears but was having troubles with it shifting up and down even on very low grades.we went to 538 gears now runs in 8 gear much better. We get 13 mpg running 70 to 80 hwy.we have the 6.4 hemi engine 8 speed automatic transmission.
Yup, with 40's, you really want to be running 5.38's. It's what we have on our JK and on our JT.
Thanks for sharing your insight on 5.13 gear ratio. Although my Jeep is also my daily driver I gave up on mpg a long time ago. Living in nyc even if im on the highway im always in stop and go traffic. Sometimes my highway mpg is worse than my local mpg,
Can’t wait for the next video.
BTW your office looks a little cramped but the view is nice. LOL
Keep up the awesome work!!
LOL - we've given up on mpg a long time ago too. Just sharing info for those who care :)
Great run down on the gearing. It's great to see where Mel's Gladiator started and where it is today (EJS); and what they did with it.
Awesome! Glad that you enjoyed the run down and seeing where Mel's Gladiator started from.
So pumped for the JT builds coming!!
Nice! I probably seen that JT being built. I knew these were going to be hot when I first seen them over a year ago. Good luck with the build. Look forward to seeing it.
No kidding, very cool! We'll be posting more videos soon :)
We all love your opinion Eddie! Great info on the gears. Can’t wait for our office to look like yours!! When we move south in a couple years when our daughter goes off to college maybe we can see y’all out on the trail while we’re “ working” 😁
LOL! Hope you can find a nice office with a window view sooner than later :)
Like the gear ratio part, how's the 0-60 difference for 37s on 4.10 vs 5.13?
It's EVO man and EVO dog lol. This is gonna be awesome! Would love to see a tent on a Gladiator. Maybe an Ursa Minor perhaps. I'm assuming you, Cindy and Tessa will be in Moab for the festivities?
Oh yeah, we'll be there :)
Can’t wait for the JT build.. great video as always guys
Glad to hear you enjoyed it.
5:13s are beasts and I’ve never driven with them but having a manual helps with any gearing. For my family vehicle I have to have an auto for my wife and cz we don’t go off-roading in the suv we stick to stock gearing with 32s. As for my truck I went from 2.73s to 4:56s and the difference is insane. I only have a v6 but will destroy v8s off the line.
One thing I have noticed with the 5.13 gears in my 2010 JK is that it likes to downshift when I don't want it to occasionally into that overdrive gear.
Yeah, that would definitely happen on a JK.
2400 rpms at 70 mph 14.3 mpg that is a cheap trade off and not going into 5th is a factory setting to protect the trans, my buddy works for a dodge dealer and thats what he told me, still a nice set up, great video
Nice jeep and good info. Thank you too
I have 37's and the 4.10's (2.0 turbo). I'm pretty happy with the setup and think the money may be better spent on upgraded driveshafts.
I probably wouldn't even spend it on drive shafts if you're not having any problems with them.
@@wayalife With a minimal 2.5" lift, I'm actually not having any issues with them. Well, that settles it then... New Synergy steering components!! haha. It goes in for the TSB this week but I suspect my freeway wobble has more to do with the stock components ;)
Good to know. I just sold my JK for a new JL and was contemplating 37s or 35s. Sound like the 37s will do just fine with the stock 4.10 gears 👍
Check out Lite Brite's channel They ran the stock 4.10s for a while with their 38s, and they did it all lol...
Very cool video and as for me I would go with 488’s . But I totally get why you went with 513’s. The reason I haven’t gone for a JL is I’ve been waiting for a Rubicon Gladiator that way I also get a truck out of it. I definitely love the name Taco Killer LOL.. I think I want the diesel version and will wait for it.
The diesel should be nice
I wish Jeep would have made the Hemi an option. Penstar V6 is a good engine in my opinion, but a little more low end from a naturally aspirated Hemi would be nice for an all around driver.
2015_ Rubicnn I agree but I love the idea of 442 tq. Which is what the diesel offers plus helps with towing in a truck version.
@@ortiz73caify torque helps with pulling, but it actually lowers your tow rating due to the heavier engine over the Pentastar V6. The 5.7 Hemi is around 400HP and 410 torque. I'm not a big Eco Diesel fan, I'd just prefer a NA Hemi. 🇺🇸
What do you think about a compromise of 4:88 - you mentioned it but do you think you’ll be able to pass in a lower gear with the 88 ratio? Obviously you’d just be projecting but what do you think? - Also, always good videos. This one slipped by me.
Hard to say for sure without having tested it but that would be my guess. I should note, you can still get 5.13's and 37's to passing power, you just need to let your speed drop low enough first. Off the line power, 5.13's are still the best though.
Dood when it says "Shift Not Allowed" you're at 5500RPM. Had it shifted into 4th you'd be past the red line. Good info on the 5.13s, but don't be mad or "frustrated" that the computer saved you from redlining. You're already doing 90MPH in a lifted Jeep!!
Ya really you need more power to go faster .EDDY whats up hardcore wheelers need to know?
I just purchased a JLUR and about to install a RK 3.5 X-Factor lift with Milestar Patagonia MTs and after watching (Lite Brite Nation) videos, I have decided on 38s. On the 38s they were doing pretty great on gas mileage and power. Plus I live in Florida and we don't have mountains on our daily commute. Should be fine, even when we come out west to vacation to hopefully wheel with Wayalife, maybe one day!
Had the RK xf on my JK. Springs are gonna ride harsh. FYI.
@@advapp Thanks for the tip. It rides like a go cart now...LOL. Has to be better than my LJ with a RC 6 inch Long Arm kit.
@@roadblazerterry its not a bad kit by any means it's just those springs.
Is great to know your point of view about this. You are a master.⚙️🛠I love the Gladiator but I prefer your JLR❤️.
LOL - you're too kind and hope that my point of view can be of help to you.
Love your videos. Went bavk to watch all your older videos. What do you think about 4.56 for 35". Im mainly on flat ground most of the time. Trying to get a better mpg on my jk and get some power back. Right now im getting about 10 to 11mpg. Im pretty sure i have the 3.21 gear.
4.56 is what comes on the new Extreme Recon Wrangler that has 35's from the factory. It is a good ratio for them and it should help out.
I have a Recon with 35” tires . Perfect ratio 4:56
Thanks for the info. on the 5.13!! Can't wait to see Mel's work this week and your future Glady.
You bet and we hope to capture some of his build here :)
Very cool, that will be an interesting finished product to say the least. I'm bummed that we can't make it to Moab this year and see it there. When are you and Cindy ordering yours?
Hoping to order or buy one as soon as we can :)
When I first started wheeling Wayalife was one of the first channels I saw and I have followed it ever since. You do it so well. I loved the Whiskey Wonderlust video and had emailed you last year.
I know this is an older thread, but I have plans to build my Jeep as I will be doing the Rubicon trail with Jeepers Jamboree at the end of July. I have decided on the shop, but I’m having some reservations about the gearing. I have a 2013 JKU that is stock except for 33” tires and 2" spacer. I plan to re-gear, air lockers, new driveshaft, new skid plates, 37” tires, 3.5” or 4.5” MetalCloak lift, 1 ton steering kit, trussed Dana 44 axle on the front with RCV joints. I was recommended 5.13 gears but I’m wondering if maybe I would be better suited for 4.88 in the long run. I have been wheeling for about 5 years. As I said doing the Rubicon Trail and and have about 60 some trails here in Arizona. I live in AZ and want to do trails in NV and CA, hopefully the Whiskey Wonderlust. I plan to do some overlanding as well. I am in the season of retirement at 73 in May, so I don't have the daily commute. I know that’s a lot of information. My Jeep is supposed to go in next week. Thanks Eddie.
Hi Larry, is it safe to assume your JKU is NOT a Rubicon? If so, please do yourself a favor and do NOT throw ANY money at your Dana 30 front axle. To do so would truly be a complete waste as there is none of what you just mentioned would prevent your ring and pinion and that is what you really should be concerned with. You can still drive home with a bent housing or steering linkage but you'll be up a creek and without a paddle with broken internal components. You'd be much better served to use that money and buy something like a Dana UD44 or if you're willing to spend a bit more and can wait, a Dynatrac ProRock 44. IF you're willing to do that, 5.13 is what you'd want with 37's on a JKU. IF not, I would NOT go any higher than 4.88 on a Dana 30 as the pinion will be way too small and be a weak point for sure, especially on something like the Rubicon. Also, RCV's are nice and I run a set now on my JLU but I don't think they're worth the premium price. From experience, a good set of chromoly shafts with full circle clips will get the job done just as well and save you about $400.
@@wayalife Thank you so very much Eddie. I greatly appreciate your response. And it is a Sport and not a Rubicon. And I am getting rid of my Dana 30 and trussing a Dana 44 axle on the front with the RCV joints. And I forgot to mention I will have Chromoly axles. I am one guy that is a little bit more attuned to the MPG as well. With that information would you be thinking 4.88 gears as I am not a heavy duty rock crawling guy particularly when my wife joins me? It’s nice that she enjoys it. Thanks again.
@@larrybrockhaus8336 If you're talking about a factory Dana 44 and don't already have it, I would save the money and buy a better 44 like a UD44 or ProRock 44. They will not need trussing or sleeves or anything else. RCV's are chromoly shafts but totally unnecessary. Standard U-joints will be plenty so long as you get them with full circle clips. But hey, it's your money and I'm just trying to save you some. On a JKU, your problem is that the automatic isn't anything to write home about like the 8-speed is on a JLU. With a JKU, you will feel significant power loss with 37's and the only way to recover it is to run 5.13s.
@@wayalife Eddie, thanks again for your time, your insight, your wisdom and your amazing knowledge and experience. It is greatly appreciated. I need to, recalibrate! :) I would look forward to joining you on one of your adventures one day!
@@larrybrockhaus8336 My pleasure. Please note, I'm not hear to sell you anything and if anything, I'd like to help save you some money. 😎
Mel is so cool! Love his products too! Can’t wait to see what the stock JT does & then Mel’s build.
Awesome, hope to share some of it with you soon.
Awesome! I'm also going with the 5.13'z I'm about half way to get a set of ProRock Dynatrac 60z. Can we follow the build on the gladiator here?
Yup, we will be posting up more as soon as we can.
Hi Eddie! Love your videos! Bought your CB Bar and love the design and practicality! 😊
I just put 37s on my Wrangler Sport JL Unlimited 2.0 Turbo, from 35s with a 3.5 lift kit. I am running the Maxxies Razzar 37s on it now. I do feel it’s become a bit sluggish especially with early acceleration and pick up. I know you said 4.10 are great to upgrade and re gear to as the sweet spot. I don’t do a halla lot off roading, but I like the look of the 37s! Do you think I should be cautious of any other components breaking due to me putting on the 37s? Anything I can do to avoid any components breaking since my jeep is a non Rubicon? Please help! Thanks Eddie!!
Being that you have a Sport, I would not recommend running a ring and pinion ratio that's greater than 4.88. Beyond that, the pinion gets really small and you're just asking for a break. That would also be a pretty good match for 37's and so long as you're not pushing your Jeep too hard, you should be good with that setup.
Ohhh Nice! I like TRD Yota's but I'm a Jeeper for years now. Totally interested in how it turns out.
More videos coming your way soon :)
Remember my brother in laws 53 Willy’s flat fender he had 538 front an rear 310 Buick wildcat 4 speed warn overdrive not much for freeway driving off road unstoppable 513 good choice be safe I see Eddie the gladiator in your future lol as always guys be safe
Oh yeah, our 54 3B is like that too. Hoping to get our Gladiator sooner than later :)
5.13 is a bit short for 37s on highway, 4.88 will be perfect but 5.13 also give you space for future upgrade.
Do you get 8th gear with 4.88s?
I wonder if you used a computer program to adjust you computers shift points if you would be able to get the transmission to kick down to 4th for passing? I went with 5:13 when I upgraded to D44’s front and rear and 37” BFG M/T and I’m very happy with them! With that said, the ever thirsty 4.0 likes to drink even more fluid, but it’s not a daily driver so I don’t really care except the distance you can cover off-road. Might have to bite the bullet when my motor goes and switch to the new Cummins!!! My buddy actually. Gets close to 30mpg with 38’s!! Btw, who would dislike this video? This has great content for people to use when looking at upgrades.
We have our speedo calibrated.
Interesting ...Which Cummins motor did your buddy swap in a wrangler jl? How much was it?
Matt Strunk New Cummins R2.8 and the price was $10,000 for the motor and adapter plate. He did the install himself. He put it in a 98 TJ.
Taco Killer! Awesome, can't wait to see it built!
Hoping we can cover some of the build for you.
I think I’ll go with 4.88s
its the best gear set.
Eddie, I see 8th gear rarely after installing just a synergy drag link and track bar on my previously stock JLUR. I know it added extra weight but didn’t realize it would make that big a difference. Did you experience the same?
Running stock tires and nothing else different? No, I can't say I saw that at all.
Hey eddie Are you getting a gladiator too?
Yes :)
Wayalife heel yeah i can’t wait 🤟🤟👍
@@wayalife LOL congratulations on the upcoming birth and delivery of your new child. I'm sure Moby and Jane will be thrilled. :0)
Just found your videos recently and have found them super helpful! I just got a 2 dr rubicon with the 3.6 auto and would like to run 37s but have concerns cause I’ve seen videos of people with JKs who say they highly recommend getting better ball joints, c gussets and other things before getting the 37s. Do you think those types of reinforcements are necessary for the JL to run 37s?
The JL comes with significantly improved axles and do not have the problems that the JK had. Being that you have a 2-door, what you will want to upgrade is your rear drive shaft as it is very short and the CV boots will be in a constant state of pinch with the amount of lift you'll need to clear 37's. This will cause them to fail prematurely. You will also need adjustable upper rear control arms to set your pinion angle.
@@wayalife Thank you! Maybe I’ll stick with the 35s as I’m still a novice.I have the Mopar 2” w/Fox shocks, steer smarts yeti xd pro front and rear adjustable track bars, synergy front lower adjustable control arms and rock crawler front spring correction pads all on order so hopefully I should be pretty set to go for 35s with some new wheels or wheel spacers. If you have any suggestions I’ll definitely take them though!..haha Thanks again, love the videos!
Sounds like you're set to me 👍
@@wayalife Thank you again for taking time to reply and the great videos.
OMG That video started out so gorgeous... your camera picked up every tree so clear and crisp. It made me drool just a little bit.
LOL - glad you enjoyed the footage :)
I have a 2018 jlur 3.6 auto with 37s and mopar lift. I'm trying to decide 4.88s and 5.13s. after watching your video I was probably thinking 5.13 but now I'm considering 4.88s although I might go 38s next year.
This video is old. I would definitely go 5.13 now.
@@wayalife what made you decide on 5:13 now?
@@rsaunders223 Mainly because of the extra power they'll give you off road. That said, after long term testing, I'm really glad I went with them as they seem to be just right and even better with a set of 38's
@@wayalife thanks for the reply!
Good insight on the gears....we’ve been debating a gear change to 4:88 with 35inch tires...from 4:10. I had some power issues climbing main sand hill at Silver Lake dunes in Michigan... 🤔
Is it safe to assume you were not shifting into manual mode when on the dunes? If so, try that before spending any money on anything.
Will do... 👍🏼
Love the video...With 5.13s in the JL d44s, do you think the weak point becomes the ring and pinion considering the 5.13 pinion is alot smaller? Or are axle shafts/u-joints still more likely to break first? Thanks alot for your feedback.
On a Dana 44, you're okay with 5.13. With a 5.38, the pinion will be too small and will be an issue. On a Dana 30, you really don't want to go higher than 4.88
@@wayalife I assume you mean 4.88 on the front for a JL that has the stock Dana 30 or are you referencing the older rear Dana 30 on previous Jeep models? I'm looking to do 4.88 or 5.13 for my 2019 JL unlimited 2.5" lift 17x9 35's and tow an overland trailer (~3300lbs)
@@prov431 Both front and rear axles NEED to be the same gear ratio. Older JK Wranglers still had Dana 44's in the rear. Because the front axle is the weak link, I would NOT recommend going higher than 4.88 if you have a Sport or Sahara as they will have an M186 or Dana 30 front axle.
@@wayalife Yes of course, gotcha on the same gear ratio - I was more wondering about the Dana 30, which I believe my 2019 unlimited sport S model has. I know it has the Dana 44 rear. I've built the jeep pretty well so far, but now I am adding a camp trailer - so I am going to need to get away from the 3.45. If I had known I would love Jeepin so much I would've bought the darn Rubi! So, just to make sure I absolutely understand - you recommend I go with 4.88 on my vehicle - correct? Thanks!!!
@@prov431 With 35" tires, 4.56 is the correct gear ratio but being that you will be towing, 4.88 will give you a bit more power over stock. 5.13 would be way too much for 35's and it'll leave you with a weak pinion up front.
favorite youtuber on the internet!
Thank you :)
Putting 35’s on my JL Sahara. Wondering if I need to regear and the question is if I do, do I do 4.10, 4.56 or even 4.88? Or do I stay with the 3.45?
Anything less than 4.88 is a waste of money. That being said, I would just install the tires and drive your Jeep as is for a while. You may find that regearing isn't even needed.
I know this video has been out for quite some time now, but after all of this time, what’s been your average gas mileage? Has it still been worse? I’ve always heard you’d get about 2-3 MPG better after switching from 4.10 to 5.13, so I was surprised to watch this video and see otherwise
So, this is an old video and in hind sight, I'm glad that we decided to go with 5.13 as the power it provides off the line is much better, is great off road and a much better fit with the 38" tires that we're now running. I would never pretend to know more than what you've heard but I only get about 13 mpg on average with 37's.
I'm so jealous of Evo having that I want one really bad Roy I love you videos I like your JL
LOL - glad you enjoy our videos
To be close to 4.10 performance with the stock tires, you would want 4.88 with 37s.
would I need 4.88 for 35's as well or 4.56?
@@MightyMax34 looks like 4.56. tiresize.com/gear-ratio-calculator/
Hey there! Awesome video but I was wondering what gears you would recommend if you were running a 6 speed manual JL? Im looking at building a 2 door 6 speed on 37s. Thanks.
If you haven't already bought your JL, I would highly recommend against a manual. And, this is coming from a guy who grew up driving and wheeling and love manuals. No matter what you do, it won't feel as powerful as the all new 8-speed automatic and you can't just install 37's without addressing the computer. I know, it sounds crazy but it's true. But, if you've already got one, 5.13's would be the ratio I'd run.
@@wayalife thank you for the reply. I havent bought it yet and have sort of been teetering on the fence over transmissions. Have even been tempted by the 2.0l auto combo but I want something that is just going to be simple and reliable.
@@HoserHotrods I personally would recommend the 3.6 over the 2.0. Having seen and tested both on the trail, the 3.6 is still a better performer or at least, in my opinion anyway.
Great information . TYVM
mannnn i really like the gladiators. i wonder what it'll be like with the eco diesel. and i really wish they would bring cummins into the picture on the galdiator and the ram 1500.
What abaut the final gear 5.13 with 37 tire size,can it be used in following the offroad xtreem and muddy road...tq..succes for wayalife😀👌👍👍👍
Maybe you will know, 22 Rubicon 4.10 now 6 spd trans. it's a dog compared to my last JL sport with a automatic. I'm thinking maybe upgrading to 35 or 37, since it is a dog now will a regear be REQUIRED to make not a even slower dog?
Your 6pd will still be slow. The spacing between the gears doesn't change, it just doesn't bog as much when winding it out. I regeared to 5.13s in the manual JTR. If I didn't tow our boat regularly, I wouldn't have regeared
For manual transmissions, I've heard that it's highly recommended to re-gear if running 37's because the stock gears make 1st gear worthless. Would you agree with that?
I would disagree with it being worthless but you would benefit from the power you'd gain back with a higher ratio.
Cool what are you guys going off-roading at on Sunday
I’m guessing the decision to buy the sport was wise. The price difference between it and a built rubicon will probably be larger than a set of axles.
For what EVO will be doing with it, yes, makes a LOT more sense.
@wayalife I have a JLU Sport S and I run Cooper 37" tires on beadlocks. I have stock 3.45 gearing and I have no issues really on obstacles or on road. I sometimes see 8th gear but really 7th gear is most common. My MPG is roughly 18-20 on HWY and 13-16 CITY and on highway I run about 2,000 RPM at 70 MPH. I also pull a trailer with a Polaris RZR on it as well that total is roughly 2400 pounds.
Overall I am happy with the numbers and performance, but I wanted to get your input on my setup. What do you think?
All of that on 3.45... I don't know bro.
Lol
Question: in the video you mentioned that 4:10 on 37 are perfectly fine. Do you have the same impression or had the same experience on the gladiator rubicon with 37 and 4:10?
Assuming you have a 8-speed auto, yeah, I would say so.
@@wayalife would you say the same for a manual?
@@scottfulton9457 If only because you get to pick what gear you want to be in, yes. I would say that 37's with 4.10 gears and a manual will do okay.
I know that this is based off of your findings in an 8 speed automatic, but in your opinion is 5:13 too low behind my 6 speed manual JLUR?
It really depends on what size tires you're running. With 37's, it'll be on the low side or high in ratio but not terrible.
@@wayalife So for 37's on a manual jl rubicon would 5:71 be better than 5:13? Thanks for your videos!
@@LarryRichelli So far as I know, 5.38 is the highest ratio that you can get on a Jeep or at least, as of now. To me, that would be way too high of a ratio for 37's. It's what I would run for a set of 40's.
I’m looking at doing the 5.13s for my wrangler. Did you do a reflash to tell your Jeep you’re running the 5.13s?
You can pay your dealership to do that but we have a Tazer and used it to set the computer.
Just noticed you had the front and rear lock/ serv 4wd on you dashboard. I just regeared my JT with yukon 5.13s and have the sane issue with the sensor thinking it's locked. I'm assuming you managed to resolve the issue. How did you fix it?
Actually, our light is on because we have a ProRock 44 front axle with an ARB locker in it. Your problem is most likely from a damaged wire at the plug for the locker.
4:88 my favorite, they were on my 64 and 65 international Scout, but I cannot remember what size tire I had, may 31’s, 32’s maybe..... but cool, never been bigger then 35 on my 2017 powerwagon, which I wash were 4:88. My 2019 Jeep 2door rubicon 6sp with the 33’s with um would be cool wonder why the crawl ratio would jump from 84 to 1?
With 4.88s on a jl 6 speed, your crawl ratio would change to 100:1
Wondering what I met was what it would be with 35’s in the 6spd and how well it would do?
2000 rpm is the sweet spot at 70 mph.
This is very helpful as I have a lifted sahara on 35's. I think 4.56 would work.
Assuming you have the 8-speed automatic, I might not waste your money on such a small ratio change.
@@wayalife I think you may be forgetting the jl sahara has stock 3.45 gearing and not the rubicon 4.10s. Considering he has a sahara running 35s, regearing from 3.45 to 4.56 would be very meaningful and a great fit.
@@Strizzle81 Yup, totally overlooked that he has a Sahara. Still, with that said, 4.56 would be a waste of money to me. I would not bother doing anything less than 4.88. If you were to upgrade to 37's in the future, they would still be a good ratio for that.
Wayalife I agree with you. And thanks for the information this is just what I thought.
Guess What? I tried to pass on the PA turnpike today going to Ohio. A scrap metal truck on the right. Doing 65 MPH. Well, he blew a tire and I caught the sidewall on the hood and windsheild. Could have taken my head off, Scary $h!t....
AWESOME VIDEO!!!! Hey!! I finally got my Rubicon, its 2.0L turbo!! I can't wait to drive it when I return home from serving overseas.
By the way, why does your dash say service 4 wheel drive?
We replaced our front axle with a Dynatrac ProRock 44. It no longer has the e-locker on it so now we get that light on the dash. Hoping Tazer will be able to come out with a fix for it.
Very cool 😎 thanks for sharing👍👍👍
You bet, glad you enjoyed it :)
One of the things my dad first taught me as a young driver is to not pull trailers in overdrive !! I say that because I experience more shifting with the 37s that I just put on my jlur !! I know transmissions are not what they used to be .. but do you think that running 37s with 4:10 gearing is hard on the transmission?? I plan on eventually doing gears .. but for now going to stick with 4:10s ..
I never felt 37's with 4.10s was hard on the transmission. The all new 8-speed auto does a great job of making things work with 4.10s
@@wayalife hey Eddie , I know this is an old conversation.. but I am finally going to make a move .. I admittedly use my Jeep way more highway than off-road !! My concern is will I get full range of my transmission back !! If you have any. new information that will help my decision on what gears to go I would appreciate it … I am running 37s with steel skids , bumpers , sliders , & flares … thank you for your time …
@@wayalife o I am leaning more towards 4:88s .. I hear the ring & pinion is stronger and run cooler !!
@@kevinellis5327 Not sure who you're hearing from and I would never pretend to know more than them but what I can tell you is that the only axle I've seen strength of a 5.13 be an issue is in a Dana 30. A Dana 44 is good up to a 5.38. With that said and with 2 years running, I have to say that I'm really glad that I went 5.13 and probably would have been disappointed with 4.88. I do a lot of long highway miles and have found the extra power to be a big help. MPG has also improved since making this video and that could be in part to the transmission learning how I drive.
@@wayalife I respect your opinion as I do a few others … I am just trying to get every little bit of information I can so I don’t feel I have made the wrong decision when done !!
So 456 gears are fine with 37s ?
Im thinking about the buying a new Rubicon X which come with 35s and 456 gears but i can also option for 488 gears .
If i went with 488s would the 35s still be ok for those gears ? I thought the option was good just in case i put 37s ?
Will flashing the computer help get you more power? It works on sport bikes but I have no idea on Jeeps?
Unfortunately, no. Calibrating your speedometer will help with shift points but that's about it.
Maybe you answered this question before on one of the comments but I don't have the time to read all 200 plus comments you got about this topic. With all that said I'm running stock 410 with 37s on a 2018 JLRU manual transmission. I got to be honest,, I never being on any trail before with it. I would like to go off roading here in Florida but I heard that I shouldn't if I got the stock 410 gears. Does it make any difference automatic vs manual offroading with 410 vs 488???? What's your recommendation?
Not sure who you've "heard" this from but apparently, they're some kind of expert and maybe you should listen to them. Me, I'll wheel with whatever I've got. 😎
So what are 4:88s really good for ?
Jeep X package comes with 4:56 which they think suits it best which makes 488s do what ?
Thank you for your opinion
The XR comes with 4.56 for 35" tires. 4.88 will bring your performance with 37's back to stock. If you want a bit more power, or are running 38's, 5.13 are a good match.
@@wayalife thanks for the info .
Love your channel ❤️
Not sure if this was asked already but if you are running 37’s and quite a bit of over landing gear is it better to have the higher gear ratio?
If anything, I would say a higher gear ratio is what you'd want as it will provide more power and help push that weight. The only reason to go with a taller gear like a 4.88 is if you're running a Dana 30 front axle. Anything higher and the pinion will be a weak point.
If you were going to re-gear a 2021 JLU with an eco diesel. What do you think a good gear ratio would be. 456 or 488??
I think I saw on another post of yours that said you were going to run 37s? If that's correct, I would run 4.88. That should bring you to about stock and anything less is a waste of money. Even on my JL, it's been a while since we made this video and I can tell you that today, I'm really glad that we went 5.13.
question: why not 4.88? do you think you would of gotten 4th gear back when passing? also would you recommend 5:13 over 4.88 if your towing a trailer? thanks
4.88 would be a good ratio for 37's but after driving with 5.13s for a while now, I'm actually happier that I went with it. I don't know if the transmission learned or I just got used to it but I feel like I have a LOT more power now. 5.13 is definitely the way to go with trailering.
@@wayalife Thank you, im getting mine done on the 25th and will use 5.13!! thanks again
Hey bro I have a question that seems nobody can answer lol ....can you run 37 inch tires on stock overland gearing of 3.73? Not rock crawling just everyday driving?
Not sure why nobody can answer this for you. Sure you can run 37" tires with 3.73. Hell, you can run just about any tire size you want. The problem is that you WILL feel a loss in power. How bad that is will depend on what you think of it.
@@wayalife thanks for the reply! I'll just stick to your channel for info love the content !
I thought regearing would increase your MPG, as the shifting points are where your engine wants them to be but in this case 2400 rpm at 70mph vs 2000 on 4.10 gears, doesn't seem like a smart choice for HW commuting. There is something I am missing here.
5.13 gears is on the high side for 37's. 4.88 bring you back close to stock and that will "help" your fuel economy but you're kidding yourself if you really think, even in a perfect world that regearing will "increase" MPG especially after installing big off road tires that have a LOT more rolling resistance. Just goes against the laws of physics.
@@wayalife so regearing helps with low end torque more than making the vehicle feel like stock?
@@ghernandez6457 Regearing will "help" make your Jeep "feel" like it did when stock but it won't change the fact that your bigger tires are heavier and have more rolling resistance. There is no way you will see an "increase" in MPG but you will see less of a decrease than you would without it.
Do you think 488s would be a compromise on my 2013 JKU with 37s for gas mileage and power?
Personally, on a JK, I would run 5.13's with 37's.
I have read so much stuff, I think I know less now than before.
With that said, JLUR with 33s and you add 20lbs (+-) per tire (up-grade), does it require higher gears or will it be ok?
Nope. You should be just fine with factory 4.10s. I ran them with 37's and thought they were fine.
Question: I bought the Patagonia 37 inch mud terrains because they are lighter than most 35 inch tires. Does this weight savings help with braking, reduce axle shaft breakage, and gearing? I have 4.10’s on a JL. Thanks. Or does it have more to do with diameter than weight?
Nope. At least, not enough to matter or even notice. The diameter is the issue.
@@wayalife last question, thanks. So if I dont plan to regear or do any other upgrades for a few years, and use this as my daily driver (30miles a day), and occasionally off road, (not hard core), would 37’s be ok? Or do you think ill regret it and should get 35’s instead? Thanks!
Awesome have a great time
I got a JLUR, just got kmc machete beadlocks and will be running the BFG K02 37s with a 3.5 inch lift. Can I replace axle parts as they wear out with upgraded components or should I be doing some part swapping sooner than later? I don't do anything high speed, just a little rock crawling about once a month maybe twice a month
Being that you have a Rubicon, you should be fine with what you've got. Replace things as needed.
@@wayalife sounds good, thanks for the reply I appreciate it!
More...please, more! LOL. Thanks guys!
We're working on it :)
2400rpm on the 8spd at 70 is what you see on a 33” tire. A 37” would be about 2200rpm
I currently have 4.10 with my 315's on my JK. Sometimes I feel like it needs more power and many say 4.88's. Would 4.56 be the sweet spot or not even worth it??
I want 315's on my '13 JKU Sahara, and have been wondering the same
4.56 is so close to 4.10 that in my opinion, it'd be a total waste of money. Also, to be clear, this video was made in regards to the JL which has the new 8-speed automatic. Totally different than what came on the JK. For you, I would recommend 4.88
Any advice and/or experience running Dana 30 with 4.88 or 5.13? 2007 Jeep Wrangler with 35s and 37s in the future
You really do NOT want to run anything more than 4.88 on a Dana 30. A 5.13 will have a pinion that is way too small and you'll risk breaking it.
Thanks!
Tire pressure on the 37” highway? And on a daily drive home to work?
✌🏻🙏🏻
I prefer to run my tires at about 28-30 psi. This is for a daily drive.
I think obtainable would've been building the stock d44 axles, gone with 37s, locker, etc.. Cool truck though.
EVO does offer a truss kit for the factory axles. You could always go that route.
How does adding the truss kit to the oem d44's compare to the pro rock in terms of strength? Cost difference?
Eddie, Again a cool video :)
Thank you :)
What’s your opinion on gladiator ecodiesel overland with 3.5” lift with 3.73 gears and 37’s? Is that very bad or doable with conservative driving speeds? Will driveshaft and other components be damaged? Thanks
You should be good with that setup.
@@wayalife thank you so much for the reply! I have to stay off jeep forums bc everyone is spitting the grim reaper venom of death on 37’s without the regear. I love your channel, your content and your very concise delivery of information. Def my fave Jeep channel on UA-cam for sure!
@@Do4now Well, I'm truly humbled that you would say as much and can only share what I have personally experienced. At 3.5" of lift, your front drive shaft will need to be replaced eventually especially if you do a lot of flexing on the trail but it's not going to self-destruct the minute you install your lift. 3.73 gears will cause you to feel a loss of power but with an automatic transmission alone, I would say it's not great but it's not horrible. With a diesel, it's actually not too bad. I've personally tested a Gladiator diesel with 4.10s and 42" tires and it wasn't even too bad. Of course, I would never pretend to know as much as people on an internet forum so you can take that information for what it's worth.
@@wayalife 😂 for sure. This will mainly be on the highway and open road lol. Thanks again!
Finally did the lift. Chose Clayton ride right 3.5 ecodiesel kit with the heavier duty front coils and adjustable front uppers with both track bars. It stands amazing. I just put bilstein 5100’s to get the lift on it. It took me 2.5 days to install the entire kit by myself with a jack and stands. Hands are still sore. Running KO2 37’s I went to go get it aligned but it’s really bouncy now. Would you recommend adding lower adjustable control arms or just geometry correction brackets? Thanks so much
Eddie is regearing the only way to get back your 8th gear?
Yes
Excuse me my ignorance, my english is not my first language, have an JL unlimited sport 2020 , think put rims 26”x14” on 37” tires, what is your recommendation, need upgrade to 5:13. Hi from🇵🇷
You want to run 26" diameter wheels with 37" tires? Most people run 17" wheels. Either way, 5.13 gear ratio is good to run with 37's.
Just curious, what is causing the “Service 4wd” light to be illuminated on the dash?
We no longer have a factory front electronic locker now that we have a ProRock 44. We have an ARB now and that's causing the error light. Hoping to get that turned off sooner than later.
I have a jlu with 35’s but tow a sxs in an enclosed trailer do you think 4:88 will be fine or should I go 5:13 trailer weight is about 4k
Assuming you have an automatic, I would think that 4.88 would get the job done with 35's.
Wayalife yes it an auto
If I have a 22 JLU sport S (8spd auto with a 2.5 lift) and want to run 35s on it is a regear needed? Thank you in advance!
"needed", no. You can get by without it but you will feel power loss and 8th gear will not be something you see anymore.
Stoked to see a Gladiator messed with so soon lool.
How'd you get your dash to show the gear next the the D? Mine will only show the gear in manual shift mode
This video should help you out :) ua-cam.com/video/rbM3cNPBNCc/v-deo.html