Customers have asked for it, and we have delivered.
Last fall, we announced our new SST lift kit and leveling offerings for the all-new GM 1500 trucks.
We specifically did not include the GMC AT4 and Chevy Silverado Trail Boss equipped with the factory lift kit.
The AT4/Trail Boss comes factory equipped with a 2" 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" 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" 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" of front lift and 1" 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 these 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.