Mount the ReadyLift 66-3921 1.75" Leveling Kit from XDP onto your GM. This leveling kit provides the necessary lift without interfering with the factory strut geometry and clearances. Additionally, considering the limited range of motion of the factory upper control arm when the AT4/Trail Boss truck is further lifted, this leveling kit includes ReadyLift's tubular upper control arms. These arms have corrected ball joint cup angles, heavy-duty replaceable ball joints, and their Terrain Control Technology (TCT) maintenance-free pivot bushings with side-biter washers, which improve alignment retention.
Features:
- Heavy-Duty Replaceable Ball Joints
- Includes ReadyLift's Tubular Upper Control Arms
- These Arms Have Corrected Ball Joint Cup Angles
- Terrain Control Technology (TCT) Maintenance-Free Pivot Bushings With Side-Biter Washers
- Provides The Necessary Lift Without Interfering With The Factory Strut Geometry And Clearances
Notes:
AT4 and Trail Boss do not fit the same size tire. This is due to the difference in front fender opening design.
Not compatible with Sierra AT4X or Silverado ZR2 Edition.
AT4 - Max tire 275/60-20, 20x9 0 offset wheel Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel.