Part Type

Suspension Lift Kit

Description Features and Benefits

RL 2.0'' FRONT/1.0'' REAR SST LIFT KIT AT4/Trail Boss Plus 2.0" SST Lift Kit- GM 1500 AT4/Trail Boss 4WD 2019-2023 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" 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 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. 2" SST Lift Kit for 20192023 GM AT4 & Trail Boss models Not compatible with Sierra AT4X or Silverado ZR2 Edition Front lift combines with factory 2" lift CNCmachined billet Aluminum top spacer and preload spacer kit Heavyduty control arms with 1ton ball joints Maintenancefree pivot bushings Includes 3" tall OE style cast iron rear lift blocks Comes with new Ubolts Max tire size for AT4: 305/5520 on 20x9 0 offset wheel Max tire size for Trail Boss: 295/6520 on 20x 2"" SST Lift Kit for 2019 2"" SST Lift Kit for 20192023 GM AT4 & Trail Boss models CNC CNCmachined billet Aluminum top spacer and preload spacer kit Heavy Heavyduty control arms with 1ton ball joints Maintenance Maintenancefree pivot bushings Comes with new U Comes with new Ubolts Max tire size for AT4: 305/55 Max tire size for AT4: 305/5520 on 20x9 0 offset wheel Max tire size for Trail Boss: 295/65 Max tire size for Trail Boss: 295/6520 on 20x"

x1 DRIVER SIDE AIR SPRING ASSEMBLY x1 PASSENGER SIDE AIR SPRING ASSEMBLY x1 HARDWARE KIT x1 MANUAL INFLATION KIT