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66-3921 ReadyLift 1.75" Leveling Kit - GMC/Chevy 3.0L Duramax 2020-2023

SKU: RL66-3921
Référence fabricant: 66-3921
UPC: 804879610489
Fabricant: ReadyLift
1.75" front leveling lift for 2019-2023 GMC AT4 and Trail Boss Not compatible with Sierra AT4X or Silverado ZR2 Edition.

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Spécifications produits



Mount the ReadyLift 66-3921 1.75" Leveling Kit 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.


  • Includes ReadyLift's Tubular Upper Control Arms 
  • Provides The Necessary Lift Without Interfering With The Factory Strut Geometry and Clearances 
  • These Arms Have Corrected Ball Joint Cup Angles 
  • Heavy Duty Replaceable Ball Joints 
  • Terrain Control Technology (TCT) Maintenance-Free Pivot Bushings