Covid, honestly! We along with many of our vendors experienced massive delays in shipping and manufacturing because of the events that happened last year. We are trying our hardest to get as many items as possible back in-stock on our site, but with continued delays in manufacturing/shipping, it hasn't been an easy task. We appreciate you checking out our site and please keep an eye for whatever you're interested in to come back in-stock! -Zach
Buyer Beware! I bought a pair of mirrors from American Trucks for my F150. After just a couple of months they no longer locked in place and I had to constantly open my window and push them back into place. Very dangerous. American Trucks said that they only have a 30-day warranty. When I expressed my displeasure, they offered me a $27 credit. Wow. I had spent over $1400 there this year. I told them to keep their $27.
In the future, you should check out boost auto parts. I've had their tow mirrors for over a year now and they have held up great. I've put them through it, off roading, going the speed limit ;) and through multiple car washes where the machine has banged them up or bent them backwards. They've never went out of place. Some mild shaking from what i heard if you're going over 100 mph, but I'd definitely recommend checking those out.
I just bought an old Chevrolet Avalanche 2004. And I have a lot to do! I hope that Silverado 2014 will be my next! Good luck with everything! Greetings from Russia!
I just got 2018 LT 5.3 does anyone know what kind of cold air intake would be best ? Or would it best to leave it stock since that’s what’s it’s designed for ?
Its best to leave it stock unless you have money burning a hole in your pocket. Most factory intakes now are "cold air intakes" and any claims you see from aftermarket ones are including a edu tune as well to get whatever they claim. Spending over 1k for an aftermarket one and a tune to make like 15 hp is not worth it.
What I’m going to do to mine is a husky floor mats,a bed cover,led head lights,blacked out led tail lights,bullet antenna,trailer hitch,bull bar,and black rims with wheels I’m going for a full black out
Mod number one should be disabling the motor destroying tech called cylinder deactivation. Its been what 15 years since this garbage was introduced manufacturers STILL can't make a system that doesn't end up blowing up the motor. It doesn't matter if it's GM, FCA, or Honda they all fail eventually and either require a new head or a completely new engine
Can anyone recommend a lift that requires no permanent modification to a truck like no cutting or trimming of frame or anything and what’s the highest I could go if I went the route of no cutting? For a gmc 1500 2018 rwd
Depends on what kind terrain you plan on truck on. If it’s a street only truck you could get maybe 4-6 in if the kit doesn’t cause you to move the drive shaft angle. If it’s desert style I would go with dirt king UCA and king shocks or fox 2.5 . Which will give you a 3 in Lift but more travel and a better ride. And you could add a 3-4 spindle with the uca arms the list goes only depends and what you’re willing to spend
Generally speaking, you can find good lift kits up to about 3.5-4" that won't require cutting/permanent mods to the truck. When you start seeing kits that include differential drop brackets, crossmember, and relocation brackets of other kinds, then you'll start grinding and cutting components. Rough Country, ReadyLift and other have really nice lift kits that don't require cutting things up! 2WD truck are a little tricky, definitely less to choose from in the aftermarket, but generally you can find some good kits! Hope this helps. - Adam
What about jump seat to console swap. I want to put a console in my 2013 2500HD but I want the newer style ones like 2014/2015 etc. vs the 2013 console. Is this possible?
I laugh everytime someone puts an aftermarket cold air intake on their truck. Your trucks airbox is already cold air genius.. The term "Cold air" is simply defined as air pulled in from somewhere not inside the engine bay, which is known to generate and retain heat. New and older stock chevys pull from within the wheel well producing the effect aka "cold air". All you need to do to achieve the same results as a $350 dollar CAI is simply dropping in a seperate aftermarket K&N replacement Air filter for the stock box at like $35-40 bucks... lol smh here not to mention you never recommended a tune to compensate for the change in airflow youd get with a streamlined air box and inlet tube, using your poorer and less than oem rated micron filtration media 🤭 Sounds like you should have researched more on that one.
One mod this truck needs is to either lower the front end a little or raise the back end. The back should be higher or level with the front to give it a cool look. This one had a front end that’s to high
Grille… I went with Headlights tail lights 3rd brake LED bolts into grille inserts n inserts 2 train horns 200psi compressor 5 gallon air tank 3” leveling kit Cam,intake, side exit exhaust Tinted windows Running boards Full kicker stereo amp subs 7 gallon water tank w/hose A-pillar LED rigid spotlights LED pods lights into bumper (grinder) Tow mirror install (had to swap door harnesses for 14 LT model) RDJ tailgate panel-
Hate that the market for 14-15 Silverado is slept on, I’m trying to find a nice cowl hood for my 15 but they’re pretty shitty, 16+ models and 13- models have nice options
I hear so much back & forth about cold air intakes not being necessary, not being worth it, etc etc, woudl love to see some tests showing it's truly a step up. And woudl it matter on 6cyl 4.3 or 8cyl or, both?
Modern vehicles come from the factory with “cold air intakes”. Companies that claim a hp increase after installing their intake are tuning the ecu to get said increase in hp. Doesn’t make sense for the average consumer to spend close to $1000 for 10 hp
@Aiming Wanderously I have a silverado a will not be putting a Cai. I had one on my tundra abs it made zero difference. It sounded cool and maybe increased throttle response but nothing other than that. Just my opinion
im glad a got a 2018 Z71 with the color-matched front/rear. Chrome is not this trucks friend lmao. Also, I feel that a CAI is not going to do a thing over stock (besides noise) without a tune.
Hey there thanks for these upgrade tips. I have a 2017 GMC Sierra SLT too, but I find the stock backup lights are too dim to see anything when I back up in the dark. I have a long driveway that is hard to navigate at night, so I need brighter lights to avoid hitting anything. Do you have any suggestions on what kind of upgrade lights? I've tried brighter LEDs but still not great. I'm certain GM doesn't hold a monopoly on this problem because I have a Toyota with the same problem. Thanks in advance.
Those tail lights look sharp. I just got a ‘16 Silverado last year and I’m loving it. The first couple of things I did was under seat storage rain guards on the windows and a bed cover. Next I’m looking into tinting the windows and the cold air intake.
We've never had that issue, may be an issue with drainage pipes being improperly installed? The bakflip is a personal favorite of mine! Thanks for watching! - Adam
@@AmericanTrucksChevyGMC Go read the website. They collect water freeze in the winter expand, get heavy. I have now had two and they both did the same thing. Spoke to bakflip about it but they did not offer the 5 year warranty when I purchased mine. All installed professionally, which does not take a professional BTW.
I bought a set of those led tail lights. I live in the Salt belt after 1 year, and 1 winter season tail lights failed due to the salt sorting out the resistors that are installed in a bad location on the tail lights them self. So redesign is a must, or a company needs to make an item that will close the gap behind the taillights.
I noticed that last night on my 2018 when I had a taillight out, nice big holes back there for the rear tires to throw everything at the back of the lights.
I've got a 17 Silverado 1500 lt. I also had the windows tinted, front floor mat, inchannel window vents, hood visor, new exhaust system, and a magnuson supercharger. Oh and my Winston brush gaurd. I might have to do a video of it.
I have a question I have a 2015 Silverado 1500 lifted and I do not see a splash shield for the engine underneath it everything is exposed once you lifted the truck did you use an aftermarket Splash Shields?
@@grayrider1865 I bought it used I'm sure whoever had it before lost the splash Shields or whatever it's even missing the upper radiator Cover I'm trying to find a replacement for the bottom splash Shields It seems like the 2015 don't have much
I put the JLT catch can on my 2017 Silverado LTZ 5.3. I was amazed at the oil/residue it catches. I can't believe that these direct injection engines are dumping that garbage back into the motor.
You guys gotta do an AFM delete. It's the active fuel management system cutting your truck down to 4 cylinders. What they don't tell you is that while the AFM is active it is still vacuuming in the 4 dead cylinders and pulling oil and burning it. This contributes to the oil usage on your truck and frankly I didn't see any changes in milage. If anything it got better! Highly recommend 👌 A hell of a lot smoother to drive too
@@bradyanderson6840 If you have a 6-speed, you can set the gear to 5 in the manual mode and it won't go into 4 cylinders. I also bought the Range Tech and that works for about $200.
I just bought a 2017 chevrolet silverado ltz 2lz midnight edition and I put it on the freeway I pushed it to the limit and it top out at 99 mph have you done any videos on that and how to get more from my silverado thanks in advance
Wheels and tires have got to be the number 1 mod on my list. It makes any truck look so much better
I agree.... speaking of, what wheels and tires are on this truck?
What size lift and tires are on this truck
i would love some advice on new tires and rims for my 2015 silver.
I just went from stock size to a 20” wheel on my ‘14. Got my wheels on custom offsets website
Here is a mechanic that owns an 18 Silverado and goes over some upgrades and mods he has done:
ua-cam.com/video/jPYqOoYTnQc/v-deo.html
Add price
What lift you guys have on the silverado
See the following link! -Zach
www.americantrucks.com/chv-fabtech-6in-gen2-basic-lift-shocks-1417.html
What’s the lift and tire size?
6" lift and 33" tires! -Zach
What year is that truck?
2016! -Zach
K N air filters suck
My question for you is..... your web site is almost out of stock on a lot of items I want to buy. Wth is going on?
Covid, honestly! We along with many of our vendors experienced massive delays in shipping and manufacturing because of the events that happened last year. We are trying our hardest to get as many items as possible back in-stock on our site, but with continued delays in manufacturing/shipping, it hasn't been an easy task. We appreciate you checking out our site and please keep an eye for whatever you're interested in to come back in-stock! -Zach
Keep these videos on the 14+ Silverado’s coming!
We absolutely will! Thanks for watching! -Zach
Agreed! Your product reviews are really helpful, they’ve helped me out a ton already. Already ordered some stuff for my 2015 I’ve only had 5 days
@@AmericanTrucksChevyGMC what size/brand lift and what size/brand of wheels does that truck have?
@@AmericanTrucksChevyGMC what are some upgrades for a 2018 4.3 V6 Silverado?
Buyer Beware! I bought a pair of mirrors from American Trucks for my F150. After just a couple of months they no longer locked in place and I had to constantly open my window and push them back into place. Very dangerous. American Trucks said that they only have a 30-day warranty. When I expressed my displeasure, they offered me a $27 credit. Wow. I had spent over $1400 there this year. I told them to keep their $27.
In the future, you should check out boost auto parts. I've had their tow mirrors for over a year now and they have held up great. I've put them through it, off roading, going the speed limit ;) and through multiple car washes where the machine has banged them up or bent them backwards. They've never went out of place. Some mild shaking from what i heard if you're going over 100 mph, but I'd definitely recommend checking those out.
I second this. I've had the Boost tow mirrors for four years. I added every option except the electric motors & second mirror heater. No issues.
What lift kit is on this truck? Specs on wheels and tires as well?! It’s perfect.
I just bought an old Chevrolet Avalanche 2004. And I have a lot to do! I hope that Silverado 2014 will be my next! Good luck with everything! Greetings from Russia!
I have a 2015 Silverado with 82k miles for sale 30k
First thing I usually do is remove the running boards..
That's exactly the first thing I did. Took them off and sold them And debadged my truck.
HAHAHA me too! Good call. I would only keep if the truck is too lifted.
I just got 2018 LT 5.3 does anyone know what kind of cold air intake would be best ? Or would it best to leave it stock since that’s what’s it’s designed for ?
Its best to leave it stock unless you have money burning a hole in your pocket. Most factory intakes now are "cold air intakes" and any claims you see from aftermarket ones are including a edu tune as well to get whatever they claim. Spending over 1k for an aftermarket one and a tune to make like 15 hp is not worth it.
500 for taillights ? Ha not a chance in hell I’d give that much for taillights .
He said easy mods not cheap....
What I’m going to do to mine is a husky floor mats,a bed cover,led head lights,blacked out led tail lights,bullet antenna,trailer hitch,bull bar,and black rims with wheels I’m going for a full black out
Hell yeah brother!
Taillight mods unnecessary, they suck.
One of the best videos you all have done for the GM trucks, keep it up!
Thanks for watching! -Zach
Tonneau covers aren't practical. Get a bed cap/shell - you'll love it
I just bought a 2017 with the 5.3 and I want to turn off the cylinder deactivation.
UUUGH. I HATE STEP RAILS.
Mod number one should be disabling the motor destroying tech called cylinder deactivation. Its been what 15 years since this garbage was introduced manufacturers STILL can't make a system that doesn't end up blowing up the motor. It doesn't matter if it's GM, FCA, or Honda they all fail eventually and either require a new head or a completely new engine
Shhhh..... I make a lot of money off of fixing these issues.
The intake is a waste of money they already come with a factory intake that pulls air from the fender.
Can anyone recommend a lift that requires no permanent modification to a truck like no cutting or trimming of frame or anything and what’s the highest I could go if I went the route of no cutting? For a gmc 1500 2018 rwd
Don’t lift it if it’s 2WD SORRY NOT. SORRY
Depends on what kind terrain you plan on truck on. If it’s a street only truck you could get maybe 4-6 in if the kit doesn’t cause you to move the drive shaft angle. If it’s desert style I would go with dirt king UCA and king shocks or fox 2.5 . Which will give you a 3 in Lift but more travel and a better ride. And you could add a 3-4 spindle with the uca arms the list goes only depends and what you’re willing to spend
Go with a leveling kit it's a cheaper start
Generally speaking, you can find good lift kits up to about 3.5-4" that won't require cutting/permanent mods to the truck. When you start seeing kits that include differential drop brackets, crossmember, and relocation brackets of other kinds, then you'll start grinding and cutting components. Rough Country, ReadyLift and other have really nice lift kits that don't require cutting things up! 2WD truck are a little tricky, definitely less to choose from in the aftermarket, but generally you can find some good kits! Hope this helps. - Adam
@@jesusruiz3723 Dumbest comment ever. Congrats. Of course you can lift a 2WD truck.
Most ppl I know seem to wanna take off the running boards
What about jump seat to console swap. I want to put a console in my 2013 2500HD but I want the newer style ones like 2014/2015 etc. vs the 2013 console. Is this possible?
Can we get a lot more 07-13 content
No buy a new truck
@@robindabank4089 some people don’t want to spend the extra money. Don’t be a jerk
Nice video and sweet truck. Is that lifted or leveled? Wondering about tire and tire package also. Sizes?
I laugh everytime someone puts an aftermarket cold air intake on their truck. Your trucks airbox is already cold air genius.. The term "Cold air" is simply defined as air pulled in from somewhere not inside the engine bay, which is known to generate and retain heat. New and older stock chevys pull from within the wheel well producing the effect aka "cold air". All you need to do to achieve the same results as a $350 dollar CAI is simply dropping in a seperate aftermarket K&N replacement Air filter for the stock box at like $35-40 bucks... lol smh here not to mention you never recommended a tune to compensate for the change in airflow youd get with a streamlined air box and inlet tube, using your poorer and less than oem rated micron filtration media 🤭 Sounds like you should have researched more on that one.
Actually helpful comment! Saved me some money!
Doesn’t pay to get one , your factory box is better imo
One mod this truck needs is to either lower the front end a little or raise the back end. The back should be higher or level with the front to give it a cool look. This one had a front end that’s to high
Why is Adam slowly morphing into Fuller from Custom Offsets
I don't really understand, but I'm just gonna keep doing my thang. Thanks for watching though! - Adam
Is this a leveling kit? Or a lift? And what size is this? This is a perfect height..?
Where can I get new seats for all the truck 2014 Silverado , also , can I upgrade the whole front for a newer one
Should be mentioned the catch can should be checked much more often If in sub zero temps
With the air box why would I need a K& N cold air filter upgrade? Please educate me. Thanks.
Nobody needs one. It's just a shiny object.
Really need an install video for those running boards.
Lol
Why?
Will those axial smoked tail lights fight on a 2014 GMC Sierra 1500?
Side steps, lower ground clearance, they suck.
Or - they can be really helpful for people getting in their truck who don't care about ground clearance. 😎 -Zach
@@AmericanTrucksChevyGMCthen dont jack the truck and put big tires on it smfh
Need to mod that transmission first. Those things are trash
Grille… I went with
Headlights tail lights 3rd brake
LED bolts into grille inserts n inserts
2 train horns 200psi compressor 5 gallon air tank
3” leveling kit
Cam,intake, side exit exhaust
Tinted windows
Running boards
Full kicker stereo amp subs
7 gallon water tank w/hose
A-pillar LED rigid spotlights
LED pods lights into bumper (grinder)
Tow mirror install (had to swap door harnesses for 14 LT model)
RDJ tailgate panel-
Here’s an easy and very cheap one… Replace that ugly fishing pole you call an antenna
Cost 444 dollars just for a pair of tail lights. What a joke
Thank you sir 😂
Man I was about to look them up till I saw his comment
Cheap ass bastard
Feel free to design and manufacture your own
@@t-bonesdirtydeedsllc8108 right!?
Him: “everyone should work for freeee”
Running boards just get in the way
The truck in this video is clean and not over the top. Very clean appearance, blinds in with the truck, and it’s simple.
Thanks for the kind words, Bobby! We appreciate it! -Zach
@@AmericanTrucksChevyGMC I literally want to send you mine and have you make it identical hahaha
Hate that the market for 14-15 Silverado is slept on, I’m trying to find a nice cowl hood for my 15 but they’re pretty shitty, 16+ models and 13- models have nice options
Gator covers...try them...5minutes installed!!
Where do you buy the oil separator? And do you have an install video
Side steps are ugly. Don’t want them on my truck.
Why does the front of the truck sit higher than the rear? Look bad.
I hear so much back & forth about cold air intakes not being necessary, not being worth it, etc etc, woudl love to see some tests showing it's truly a step up. And woudl it matter on 6cyl 4.3 or 8cyl or, both?
Modern vehicles come from the factory with “cold air intakes”. Companies that claim a hp increase after installing their intake are tuning the ecu to get said increase in hp. Doesn’t make sense for the average consumer to spend close to $1000 for 10 hp
@@kylebradley7751 HP, no, but what about gas mileage?
@Aiming Wanderously I have a silverado a will not be putting a Cai. I had one on my tundra abs it made zero difference. It sounded cool and maybe increased throttle response but nothing other than that. Just my opinion
Ain’t not a damn thing cold about that intake buddy at-all 😂
im glad a got a 2018 Z71 with the color-matched front/rear. Chrome is not this trucks friend lmao.
Also, I feel that a CAI is not going to do a thing over stock (besides noise) without a tune.
What size lift/wheel&tire combo does this truck have?
6" of lift and 33" tires! Check out the full build at the following link! -Zach
ua-cam.com/video/WDSOUL5YRuU/v-deo.html
You had me until you recommended the K&N cool air intake. This thing does nothing for your engine
What size lift is this? Or is this a leveling kit?
6 inch lift! -Zach
@@AmericanTrucksChevyGMCtire size?
Bakflip quality is trash not sure what happen
Running boards are so lame. They ruin your height . Only cool if you have ones that hide
I want to take off my tow mirrors they came from it dealership factory with them I want to put on regular ones is it plug and play
Clockluis8 et son équipe viennent de déverrouiller mon gadget..
Hey there thanks for these upgrade tips. I have a 2017 GMC Sierra SLT too, but I find the stock backup lights are too dim to see anything when I back up in the dark. I have a long driveway that is hard to navigate at night, so I need brighter lights to avoid hitting anything. Do you have any suggestions on what kind of upgrade lights? I've tried brighter LEDs but still not great. I'm certain GM doesn't hold a monopoly on this problem because I have a Toyota with the same problem. Thanks in advance.
i think toolboxes are pretty easy to install and should be equivalent to the tonneau cover
Those tail lights look sharp. I just got a ‘16 Silverado last year and I’m loving it. The first couple of things I did was under seat storage rain guards on the windows and a bed cover. Next I’m looking into tinting the windows and the cold air intake.
How’s it going so far?
How it goin m8
Life got in the way so haven’t done the tint or cold air intake yet but just got a new job that pays more so hopefully soon on both
Well hows the job going man 🎉
new sub have a 2017 lt 5.3 lookinf for led taillights and blacked out headlight cover and fog cover
The taillights are fine unless you have stock led like I did on my 2017 and I have still yet to find a aftermarket set that will work
Is this truck tungsten metallic? Looks really good
I bought a 2018 silverado 1500 ext. cab LT about 3-4 months ago, I have the same color its called "Havana Brown" its sharp.
This video is basically an infomercial. Complete waste of time.
Why not the 3rd brake light 😅
What Wheels and tires are on this
As far as I’ve seen they don’t make the oil separator for the 4.3L model Silverado.
What kind of lift kit is it ???
Do not buy the bakflip. Gets water in it and gets heavy.
We've never had that issue, may be an issue with drainage pipes being improperly installed? The bakflip is a personal favorite of mine! Thanks for watching! - Adam
@@AmericanTrucksChevyGMC Go read the website. They collect water freeze in the winter expand, get heavy. I have now had two and they both did the same thing. Spoke to bakflip about it but they did not offer the 5 year warranty when I purchased mine. All installed professionally, which does not take a professional BTW.
I like the lights.
First thing I did was remove the side steps lol
Thanks for watching! -Zach
How many inches is that lift kit I want my truck like that
Ecm
Stabili trac no cooler and transmission spent
Never do cold air mods they ruin your engine
Do y’all think the oil catch is actually affective? Jw if it’s worth getting.
Cool video
Thanks a lot for watching! -Zach
What kind of lift kit does the truck have!!!
Will the oil separator and the intake make me throw a code? 2018 Sierra 5.3
Nope! It won't make your truck throw any engine codes! -Zach
What year is that truck? She’s a beauti
2016! -Zach
I bought a set of those led tail lights. I live in the Salt belt after 1 year, and 1 winter season tail lights failed due to the salt sorting out the resistors that are installed in a bad location on the tail lights them self. So redesign is a must, or a company needs to make an item that will close the gap behind the taillights.
I noticed that last night on my 2018 when I had a taillight out, nice big holes back there for the rear tires to throw everything at the back of the lights.
I've got a 17 Silverado 1500 lt. I also had the windows tinted, front floor mat, inchannel window vents, hood visor, new exhaust system, and a magnuson supercharger. Oh and my Winston brush gaurd. I might have to do a video of it.
Yes
I have a question I have a 2015 Silverado 1500 lifted and I do not see a splash shield for the engine underneath it everything is exposed once you lifted the truck did you use an aftermarket Splash Shields?
@E. Tamplin It's the Z71 4wd it has a 6" fabtech lift I figured it would have came with the plates but there is nothing everything is exposed
@@grayrider1865 I bought it used I'm sure whoever had it before lost the splash Shields or whatever it's even missing the upper radiator Cover I'm trying to find a replacement for the bottom splash Shields It seems like the 2015 don't have much
Nice! Thanks man. What about fender flares?
Gotta be careful with flares, truck has to be clean dry and dirt free.
One mistake and fenders will rust
Where did you get the canister at for the oil
How many inch lift was on this truck
What tires and rims you have on??
Question could you easily swap a 4.3 for a 5.3? Is there a difference on transmission
Just sell your 4.3 and buy a 5.3
Easily? Just the fact that you're asking that question on UA-cam- the answer would be no.
I put the JLT catch can on my 2017 Silverado LTZ 5.3. I was amazed at the oil/residue it catches. I can't believe that these direct injection engines are dumping that garbage back into the motor.
I’ve had the same reaction on any vehicle I put a catch can on lol, makes me wanna get a rebuild
@@lolsk9136 Direct injection and turbos are for the birds. Bring back the Vortec.
It's why I always say its an "all pros, no cons" kind of mod. It's easy, and it works. -Adam
You guys gotta do an AFM delete. It's the active fuel management system cutting your truck down to 4 cylinders. What they don't tell you is that while the AFM is active it is still vacuuming in the 4 dead cylinders and pulling oil and burning it. This contributes to the oil usage on your truck and frankly I didn't see any changes in milage. If anything it got better! Highly recommend 👌 A hell of a lot smoother to drive too
@@bradyanderson6840 If you have a 6-speed, you can set the gear to 5 in the manual mode and it won't go into 4 cylinders. I also bought the Range Tech and that works for about $200.
Does the tail light replacement bring down the value of the truck should you wanna resell it
I'd just keep the original stock taillights and if you ever wanna sell it for any reason, just swap them back
Not impressed
those tail lights are horrendous...
$2500 for these 5 “mods”.
Why the quotations?
nothing is free
@bradhaines3142 salvation is free but it cost God alot.
What was the brand on tail light?
Save the money you'd spend here to rebuild the trans when it goes, the 6spd is garbage, multiple class action law suits against them for it
These have 6 speed tho
@@jesusluevanos2428 6spd 8spd 27spd...still garbage
Anybody notice no step on passenger side 😂
I just bought a 2017 chevrolet silverado ltz 2lz midnight edition and I put it on the freeway I pushed it to the limit and it top out at 99 mph have you done any videos on that and how to get more from my silverado thanks in advance
Possibly has a governor installed to limit max MPH, you should be able to get over 110 easily with the 5.3l
Sorry reading old comments but that’s 100% governor…Silverado could probably do 120 without it