2019-2025 GMC 1500 1.75" Leveling Kit (66-3921)

Ask and ReadyLift will deliver; this 1.75" front lift kit 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. This kit provides the required amount of lift without causing conflict with the factory strut geometry and clearances.

Part Number: 66-3921

• HD tubular steel upper control arms
• TCT maintenance-free pivot bushings
• HD 1-ton ball joints
• CNC-machined billet aluminum top and bottom mount strut spacers
• Eliminates ball joint binding

Tire Fitment:

• AT4 - Max tire 275/60-20, 20x9 0 offset wheel
• Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel
• If re-using factory wheels on a Trail Boss, you can run max tire size 285/75R18 with NO trimming!

• Not compatible with Sierra AT4X or Silverado ZR2 Edition
•  AT4 and Trail Boss do not fit the same size tire. This is due to the difference in the front fender opening design.

• ReadyLIFT Suspension Inc. and/or Dirty Diesel Customs are NOT responsible for any damage or failure resulting from improper installation.
• Click here for installation instructions

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