ReadyLIFT customers have asked for it and we have delivered. 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.
Not compatible with Sierra AT4X or Silverado ZR2 Edition.
2" front lift combines with factory 2" lift.
CNC-machined billet aluminum top spacer and pre-load spacer kit with heavy-duty control arms
1-ton ball joints and maintenance-free pivot bushings
Includes 3" tall OE style cast iron rear lift blocks with new U-bolts
AT4 - Max tire 305/55-20, 20x9 0 offset wheel
Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel
Note: Not compatible with rear mono-leaf springs. Click here to learn how to determine if you have rear mono-leaf springs.
NOTE: These will not fit late model 2024 or 2025 applications that have round U-bolts. Using U-bolt part number 67-35120UB will allow this kit to fit 2025 applications.