ReadyLIFT's leveling kit for the GM 1500 series 2WD & 4WD trucks. The new design provides a leveling solution through an all-new upper strut spacer instead of the horseshoe bottom strut design. This new design helps reduce the risk of contact with the CV boots when not installed properly. These new kits offer a 1.5" leveling solution for the new body 2020-2023 Chevy Silverado and GMC Sierra 1500 trucks. The leveling kit spacers are manufactured from CNC-machined 6061-T6 aircraft-grade Aluminum with a unique design to work with exclusively the 2020-2023 GM 1500 struts.

The 66-39150 leveling kit is specifically designed for the GM 1500 trucks without Adaptive Ride Control whereas the 66-39151 provides two extra brackets to work on GMC Denali and Chevy High Country 1500s equipped with ARC.

This all-new leveling kit will allow for up to a 33x11.50-20 tire on a 20x9 0 offset wheel (same wheel/tire specifications as the 66-3920 & 66-3922).

Features: 

• Leveling solution with new upper strut spacers
• Reduce contact with CV boots
• 1.5" leveling solution
• Made from aircraft-grade aluminum 
• Allows for up to a 33x11.50-20 tire on a 20x9 0 offset wheel

Includes: 

• 2 CNC machined 6061-T6 billet aluminum upper strut extensions 
• 4 installation nuts 
• Instruction guide 
• Lifetime warranty

Notes: 

• Not compatible with Chevy Trail Boss and GMC AT4 / AT4X suspension
• Not compatible 2019 Limited OLD Body Style
• Some wheels may require 6mm or greater wheel spacer to clear the brake caliper
• MAX 33x11.50-20 on 20x9 0 offset
• Minor trimming to felt liner may be required on some applications
• Every tire and wheel combination should be test fit before installation
• Lifting can alter ride quality
• Some wheels may require front wheel spacers to clear the caliper
• Will not fit ZR2
• Not compatible with Super Cruise

Installation Guide