69-3920 +2" SST Lift Kit: 2019-2021 GM AT4 & Trail Boss.
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