I see tons of guys on the forums running the 2.25 summit level kit with true 35x12.5 and a -12 offset wheel on the AEV Bison edition with no rubbing - you agree there? Just received my level kit and wondering if I need to run 35x11.5 with that -12 offset but 12.5 strongly preferred. Appreciate the info and great video!
Here's what i don't understand. Why change the block on a Sierra AT4x when they already come with a 1" block from factory? The summit kit has the 1" peak block, but it doesn't seem necessary. what am i missing? I purchased this kit recenlty but it seems i purchased the block for no reason.
We provide a 1” lift block, meaning it’s 1” taller than the factory block. The factory block is a 2” block. If you don’t utilize the block it won’t sit level at the 2.25” lift height
I'm going to be running the AT4X with the peak 2.25 summit Kit - stock wheel. This makes me feel better about fitting the 305/70-18 (12" wide / 34.84" tall) Territory MT tire if your fitting a 12.50 wide with basically stock offset and very minimal trimming.
I have the same setup as @NickDedic but I found the 305/70/18 rubbed on the upper A arm with the AEV wheels. I added 1/2 inch spacers to clear along with longer wheel studs. That makes the rubbing at the back edge a little worse and I had to remove some metal brackets and tuck the fender liner back. Also trimmed most of the splash guard off. It was worth all of the effort, it looks great.
@@travass100 Just got mine done, I’m running a 2020 AT4 with the GM DSSV kit, rear leafs etc. Identical to a 2022+ AT4X/ZR2 suspension. With the peak 2.25 kit I’m running stock at4x wheels 18x8.5 with a 1” spacer and the 305/70-18 Territory MT tires clear fine. I had to do the normal trimming only to front bumper plastic and the rear I trimmed the liner and mudflap. Does not rub.
Can the auto 4wd be used with the Peak 2in kit or will there be vibration? I have seen other kits saying you will have vibration in 4wd when leveling a ZR2 or AT4X
What sliders/steps, ditch light brackets and roof racks? Coming from a 3rd gen Toyota Tacoma, so USDM trucks are new to me and am having a tough time finding quality parts.
These truck is running the following: Prinsu Standard Roof Rack (in stock) CBI Ditch Brackets (in stock) CBI Sliders (made to order) CBI and AEV Skid Plates (in stock) Peak 2.5' DSC Coilovers (in stock) Peak Sway Bar Relocation Bracket (in stock) Peak Tie Rod Reinforcement brackets (in stock) Peak Rear Lift Blocks (in stock) Peak Tubular Upper Control Arms (in stock)
@@peaksuspension thanks!! i'm guessing spacers would cause more issues or would they allow me to get the 34's without any trimming on the back fender liner?
@@nyquillisdillwad2824 our leveling kits and 2 piece spacer lift don't cause any issues. If you're referring to wheel spacers, the further out you go the worse it will rub.
If you want to fit 35's, you want at least 3" of lift. Our coilovers and arms fit the standard 1500's as well. In stock and available today: www.peaksuspension.com/product/peak-suspension-2-5-dsc-trek-kit-19-silverado-sierra-1500-zr2-at4x/
I’ve purchased / installed a set of the shocks / Coilovers for my ‘23 AT4x. What amount of thread on the front coilover should be exposed to get the 2.25” lift in the front? Or are they set at that height when sent out?
@@richardjoseph2145 much nicer. Multimatics are great don’t get me wrong but I was coming from a 4Runner with 2.5 Icons and Resi’s so the Multimatics weren’t that. These handle great and could immediately tell the difference just driving off the curb right after I installed them. Very soft and controlled.
You will, the suspension isn't any different on the ZR2 Bison. Trimming will be little to none because of the aftermarket bumper however you still have to contend with the cab side. All the suspension kits we recommended work on the ZR2 Bison as well as AT4X AEV Edition
@@crazycomments8038 We have several options, some that retain the Multimatics and some that replace them. Check out our website for the right kit for your needs
So I have a 2024 at4x! Completely stock running 35x 12.50 cooper rigged trek (the largest 35x12.5 actual size you can get). No rub! Truck drives perfect. You don’t need a lift for these tires. Now I will go 37 next this will require a level in the front only.
I have a 2023 on a 4” ready lift and I want to run 35 on a 22 wheel is there a lot of cutting I have to do for this? And will a negative offset mess up the 4 wheel drive ?
So with the 2 piece 2.5 level kit and Dirt king ball joint control arms there isn't any contact between the shock spring and upper control arm at full droop?
Sick Silverado ZR2! Full size is tempting...
Do iiiiit, it's the best truck I've ever owned, had it for 2 years and 45k miles, it's amazing still
What are you guys doing about ECM/TCM tuning for tire size from 33”-37” for trans shifting etc?
Unfortunately there's not much you can do. For the time being, we know the true mph but as far as driveability, there's almost zero change.
@@peaksuspension Are you saying there IS a way to adjust the MPH/speedometer? I had read elsewhere there IS NOT a way to do this. Thanks in advance.
@@andrewstauch707 Presently there is no way to calibrate for larger tire
Excellent video and helpful information.
I see tons of guys on the forums running the 2.25 summit level kit with true 35x12.5 and a -12 offset wheel on the AEV Bison edition with no rubbing - you agree there? Just received my level kit and wondering if I need to run 35x11.5 with that -12 offset but 12.5 strongly preferred. Appreciate the info and great video!
We haven't tested to confirm. I would imagine it will require additional trimming on the cab side
What about the 2500's? I just got the zr2 bison in the 2500. Any info on how to get 37's on?
From our understanding and people who have them, they already will fit
Here's what i don't understand. Why change the block on a Sierra AT4x when they already come with a 1" block from factory? The summit kit has the 1" peak block, but it doesn't seem necessary. what am i missing? I purchased this kit recenlty but it seems i purchased the block for no reason.
We provide a 1” lift block, meaning it’s 1” taller than the factory block.
The factory block is a 2” block. If you don’t utilize the block it won’t sit level at the 2.25” lift height
I wonder if a 35/11.5 with the stock wheel would work? I like the stock wheel look.
That size does work
@@peaksuspensionWould a 305/70/18 (35x12) on a stock wheel fit without much trimming using the 2” or 2.25” level kit?
Awesome video, definitely looks super with those 35s, what rack is that on the truck roof ?
That's a Prinsu OG roof rack
www.peaksuspension.com/product/silverado-1500-roof-rack-22-prinsu/
Are you selling the brackets for the front bumper already?
@@edwinrueda-perez5969 not yet, we will be in the coming weeks
@@peaksuspensionwill there be an installation video for the bracket when they are available?
@@_mikeyomega Sure will!
Are these wheel +25 or +5 offset?
@@danielclanton8781 these are the aftermarket AEV wheels. They’re a +5 , 6x139.7
The 2nd gen Colorado is the +25 with 6x120 bolt pattern
I'm going to be running the AT4X with the peak 2.25 summit Kit - stock wheel. This makes me feel better about fitting the 305/70-18 (12" wide / 34.84" tall) Territory MT tire if your fitting a 12.50 wide with basically stock offset and very minimal trimming.
The less aggressive offset the better.
I have the same setup as @NickDedic but I found the 305/70/18 rubbed on the upper A arm with the AEV wheels. I added 1/2 inch spacers to clear along with longer wheel studs. That makes the rubbing at the back edge a little worse and I had to remove some metal brackets and tuck the fender liner back. Also trimmed most of the splash guard off. It was worth all of the effort, it looks great.
@@travass100 Just got mine done, I’m running a 2020 AT4 with the GM DSSV kit, rear leafs etc. Identical to a 2022+ AT4X/ZR2 suspension. With the peak 2.25 kit I’m running stock at4x wheels 18x8.5 with a 1” spacer and the 305/70-18 Territory MT tires clear fine. I had to do the normal trimming only to front bumper plastic and the rear I trimmed the liner and mudflap. Does not rub.
Peak was out of stock on the upper an arm so I’m running a Dirt King boxed upper an arm with uni ball and heim joints.
I can't find the front bumper brackets (for moving front bumper forward) for the ZR2 on your site. Please let us know an eta on the availability.
They are in production now, we plan to release to release soon
Can the auto 4wd be used with the Peak 2in kit or will there be vibration? I have seen other kits saying you will have vibration in 4wd when leveling a ZR2 or AT4X
All functions are retained
What sliders/steps, ditch light brackets and roof racks? Coming from a 3rd gen Toyota Tacoma, so USDM trucks are new to me and am having a tough time finding quality parts.
These truck is running the following:
Prinsu Standard Roof Rack (in stock)
CBI Ditch Brackets (in stock)
CBI Sliders (made to order)
CBI and AEV Skid Plates (in stock)
Peak 2.5' DSC Coilovers (in stock)
Peak Sway Bar Relocation Bracket (in stock)
Peak Tie Rod Reinforcement brackets (in stock)
Peak Rear Lift Blocks (in stock)
Peak Tubular Upper Control Arms (in stock)
@@peaksuspension thank you for the reply and parts list!
Nice video and love your company and products. I wish you guys have a branch in Saudi Arabia! I have a 2023 Silverado ZR2
@@FahadZR2 we actually have a lot of customers out there we have shipped to. We’re working on getting some distribution out there
@@FahadZR2 thanks for the support and kind words!
@@peaksuspension all the best guys!
@@peaksuspensionit is what you guys deserve! A solid American brand keep it up guys ❤
هلا والله فهد عندي ZR2 تقدر ترسلي سنابك ابيك في موضوع؟
So your 2.5 coilovers will level out a ZR2/Trail Boss being they are both 2" from the factory? If so, how much more lift do you net from factory?
Level or lift, yes
So stock zr2 bison, stock wheels (aev), if I just did the standard leveling kit, what size tires could I fit? Could I add a 1.5-2” spacer?
Most people are running 34s. The stock wheel offset prevents you from using wider tires and upper control arms.
@@peaksuspension thanks!! i'm guessing spacers would cause more issues or would they allow me to get the 34's without any trimming on the back fender liner?
@@nyquillisdillwad2824 our leveling kits and 2 piece spacer lift don't cause any issues. If you're referring to wheel spacers, the further out you go the worse it will rub.
What lift is the best on 2wd? Is it good to put 35s on a 1500 2wd duramax ?
If you want to fit 35's, you want at least 3" of lift. Our coilovers and arms fit the standard 1500's as well. In stock and available today: www.peaksuspension.com/product/peak-suspension-2-5-dsc-trek-kit-19-silverado-sierra-1500-zr2-at4x/
Is this the same for a Trail Boss? Or is there a difference in fitment between the two?
@@moonshiner313 the premise pretty much the same on Trail Boss.
So, with just the top plate level, what tire/wheel offset can I expect to fit?
@@BrianHagan-n3g most people will use 33’s with the same offset range of +0 - +15
so if I keep factory zr2 wheels, with the simple leveling kit, will 35x11.50 fit with no rub or trimming?
We personally haven't tested on a stock wheel with that tire size, it'll be close
I’ve purchased / installed a set of the shocks / Coilovers for my ‘23 AT4x. What amount of thread on the front coilover should be exposed to get the 2.25” lift in the front? Or are they set at that height when sent out?
You'll want to go up 1/4" of preload to get to 2.25"
@@peaksuspension thanks for the prompt reply!
How are you liking them compared to multi-matic?
@@richardjoseph2145 much nicer. Multimatics are great don’t get me wrong but I was coming from a 4Runner with 2.5 Icons and Resi’s so the Multimatics weren’t that. These handle great and could immediately tell the difference just driving off the curb right after I installed them. Very soft and controlled.
Getting a used zr2 AEV Bison addition. Do you expect any need wheel offset or leveling I’ll need it I want to upgrade to 35s?
You will, the suspension isn't any different on the ZR2 Bison. Trimming will be little to none because of the aftermarket bumper however you still have to contend with the cab side.
All the suspension kits we recommended work on the ZR2 Bison as well as AT4X AEV Edition
@@peaksuspension what does the package go for something like this?
@@crazycomments8038 We have several options, some that retain the Multimatics and some that replace them.
Check out our website for the right kit for your needs
What about 37s? 👀😅
lol yeeeeah it’s the next tire after my 35’s are done
LOTS of trimming. There’s a video on here of a guy doing it, but it’s way more trimming and cutting than most people are comfortable with.
@@travass100 oh rad, I wonder where the video is
@@kristoferfc6525 ua-cam.com/video/4Wjn4oKSi80/v-deo.htmlsi=5SRQG9CQwvzfOqCq
So I have a 2024 at4x! Completely stock running 35x 12.50 cooper rigged trek (the largest 35x12.5 actual size you can get). No rub! Truck drives perfect. You don’t need a lift for these tires. Now I will go 37 next this will require a level in the front only.
I have a 2023 on a 4” ready lift and I want to run 35 on a 22 wheel is there a lot of cutting I have to do for this? And will a negative offset mess up the 4 wheel drive ?
i have 24 ZR2 wondering the same thing
So with the 2 piece 2.5 level kit and Dirt king ball joint control arms there isn't any contact between the shock spring and upper control arm at full droop?
They will not, there's no contact with the shock and their control arms or ours
@@peaksuspension thank you for the feedback. Order placed.
Ocotillio testing soon.
I hope the stock 18" rims allow 20 psi. 🤞
My Peak gear ran 7 badge trails in Moab. Worked awsome. @barryguffey8061
That's awesome! We love Moab. Tag us in your photos!
@@peaksuspension@barryguffey8061 Top of the World
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