AT4 - Looking for 3-3.5" Level with Bigger Tire Photos

[ekraft84]

Hey All,

 

Another leveling post, I apologize.  I've been looking for samples of anyone who's put on a 3-3.5" leveling kit, as well as bigger tires.  Thinking 285/65 20's.  Also looking at 1.5" wheel spacers and coming from a Ford, I know how that looks, but I'm struggling to find an example of how it'd look on a Sierra, which will be my next truck.

 

Thanks.

Edited December 20, 2020 by ekraft84

[Supercup]

Here is my 2020 AT4 with BDS 2.5" coilover lift kit.  I would recommend you consider a lift kit (even if you don't go to the expense of new shocks) over a leveling kit to get proper geometry on your cv axels.  If you start at 2" with OEM AT4/Trail Boss lift - then ad 2-3.5" - you end up with pretty extreme angles and wear an tear will occur.  You can spend and extra $500 - $700 up front for proper lift and get good CV angles, or pay the piper down the road.  I had a 2019 AT4 with Ready Lift SST 2" level kit - picture below of CV axel angle - it i not ideal - RL states on site that they do not recommend using "auto 4WD" with level kit due to torque on the front diff from poor axel angels when shifting on the fly at speed.   Rough Country, Zone and BDS all offer proper lift kits that lower the front diff to proper geometry angles in the $1,000 - $1,500 range.  Level kits are $400 - $700 - so you get to decide.  If not dong much off road or using 4WD much - then level will likely be fine, but if off roading or using auto 4WD - buyer beware 

 

2020 AT4 with BDS 2.5" lift with Coilovers 

 

2020 AT4 with 2.5" BDS lift CV Axel - pretty much dead level 

 

2019 AT4 with Ready Lift SST Kit 2" level kit - pretty extreve CV Angels - RL states - "do not use with auto 4WD" 

 

Edited December 20, 2020 by Supercup

[ekraft84]

Thanks Supercup.  Truck looks sharp.  What size tires are those?

 

I was looking at the Autospring leveling kit, which would level & raise the front and rear, keeping the angles in check, as far as I can tell.  I would like the rear just slightly higher than the front, ideally.

 

[Supercup]

Mine is still on stock 275/65/18 Duratracs - will go to 285 or 295 when these are done. 

 

Here is photo of my 2019 with RS SST level kit without their rear block and stock wheels - then with their rear block (about 1/2" taller than stock), with Method wheels for reference. 

 

 

[ekraft84]

Thanks again for the photo.  I'm thinking with stock wheels, wheel spacers will be necessary (based on preference, looking at others on the road).

 

I'm thinking of putting 285/60 20's on, with 1.25"-1-5" wheel spacers - and bumping up the leveling blocks another inch or so (in addition to the 2" the AT4 comes with) on both the front and rear.  I'm hoping that would give a nice, slightly more aggressive look.  

 

Whatcha think? 

 

Edited December 22, 2020 by ekraft84

[ekraft84]

bump

[Unclebud87]

I'm installing the 1.75" zone leveling kit with control arms on my trail boss Wednesday. If your gonna do a leveling kit spend the little bit extra and get the one that comes control arms. Tire size wise I'm putting 285/75r18 maxxis razr mts. Can't comment on the wheel spacers because I personally just don't like messing with them. Lift wise I'll be right under 4" from a standard silverado or gmc.

[PureZ71]

On 12/20/2020 at 12:30 PM, Supercup said:

Here is my 2020 AT4 with BDS 2.5" coilover lift kit. 

 

2020 AT4 with BDS 2.5" lift with Coilovers 

 

2020 AT4 with 2.5" BDS lift CV Axel - pretty much dead level 

 

Awesome setup. I'm assuming that kit can work on TB as well? Do you by chance have the link for the parts you purchased? I was also looking at the RL 2" SST kit but you setup looks solid.

[Supercup]

On 1/18/2021 at 7:21 PM, PureZ71 said:

Awesome setup. I'm assuming that kit can work on TB as well? Do you by chance have the link for the parts you purchased? I was also looking at the RL 2" SST kit but you setup looks solid.

 

Hi,

 

I had RL 2" SST on my 2019 - you can't use "auto 4wd" with that level kit.  CV axel angels are pretty extreme (see photos below).  With proper lift you spend more, you get level cv axel angles and the upgraded shock offer good ride and a lot of upgraded performance, especially offroad - but you do pay for that.  Zone (owned by BDS) offers a lift with no shocks - that is a good option if the shocks are too expensive - but add them later.  Only give up is when you drop the diff - you do give up some front ground clearance - stock is 10" - BDS to bottom of diff skid plate is a about 8.1" - so bigger tires are nice, if doing serious off road work. 

 

If you decide to go with RL SST kit - cheapest place I found it was Tire Rack - $586 (was $512 when I got for my 2019). 

LInk: https://www.tirerack.com/suspension/suspension.jsp?make=ReadyLIFT&model=SST+Lift+Kit&autoMake=GMC&autoModel=Sierra+1500+4WD&autoYear=2019&autoModClar=Crew+Cab

 

The kits are the same for AT4 and Trail Boss.   BDS has multiple options and Zone has level and lift option. 

 

Link BDS:  https://bds-suspension.com/product?kid=749H

 

Link Zone https://zoneoffroad.com/products/4-in-ifs-suspension-lift-kit-2019-2020-chevy-trail-boss-gmc-at4?variant=33675658297432

 

2019 AT4 - Ready Lift SST 2" level - OEM 275/65/18 Duratrac's 

 

Zone Information Video 

link:  

 

 

Edited January 20, 2021 by Supercup

[vrikas]

you could compensate to reduce the angles from the 2" ready lift by dropping the diff 2 inches. this can be easily accomplished by removing the 4 bolts that hold the diff and using a longer bolt and poly urethane spacers. you don't have to reinvent the wheel here.