Last fall we announced our new leveling and SST lift kit offerings for the all-new GM 1500 trucks. We specifically did not include the factory lift kit-equipped GMC at4 and Chevy Silverado Trail Boss.
The AT4/Trail Boss are factory equipped with a 2-Inch front lift. This front lift includes a longer front shock/strut assembly.
When combining a traditional leveling kit on these factory lifted trucks, several issues present themselves including binding problems with the factory control arm ball joint and contact concerns with the lower strut/CV axle assembly. The 69-3920 SST Lift Kit works with the factory 2-Inch front lift.
This kit includes a top mount strut spacer along with a pre-load spacer to limit droop and the same premium grade upper control arms now available in our 66-3921 leveling kit. OE style 3-Inch tall cast iron rear lift blocks and rear bump stop extension cups are also included to create a true AT4/Trail Boss-specific bolt-on lift kit that provides 2-Inch of front lift and 1-Inch of rear lift.
This new lift kit concept is similar to our successful TRD Pro Plus 2 SST Lift Kit which is also engineered specifically to work with that factory OE suspension lift. Your trust in ReadyLIFT to provide high-quality, precision engineered products is extremely important to us.
You can be assured that this all-new SST lift kits are the absolutely most reliable and best performing suspension upgrade option for the AT4/Trail Boss trucks. AT4 - Max tire 305/55-20, 20x9 0 offset wheel Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel Note: Use of Auto 4 HI feature not recommended..
Note: This GM 1500 kit is Not compatible with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable the U-bolt is round/circular around the top of the leaf spring.
This kit only works with vehicle equipped with traditional steel leaf springs identified by square U-bolts. Note: Not compatible with Sierra AT4X or Silverado ZR2 Edition.
Features and Benefits:
- 2-Inch SST Lift Kit for 2019-2023 GM at4 and Trail Boss models
- Not compatible with Sierra AT4X or Silverado ZR2 Edition
- Front lift combines with factory 2-Inch lift
- CNCmachined billet Aluminum top spacer and preload spacer kit
- Heavy-duty control arms with 1-ton ball joints
- Maintenance-free pivot bushings
- Includes 3-Inch tall OE style cast iron rear lift blocks
- Comes with new U-bolts
- Max tire size for AT4: 305/5520 on 20x9 0 offset wheel
- Max tire size for Trail Boss: 295/6520 on 20x
Details:
- Fitment: Direct Fitment
- Front Lift Component: Spacer
- Front Lift Height: 2.0 Inch
- Front or Rear: Front and Rear
- Install Difficulty: Difficult Requires Professional Installation
- Installation Time: 5+ Hours
- Max Tire Size: 305
- Rear Lift Component: Block and U-bolt
- Rear Lift Height: 1.0 Inch
- Shocks Included: No
