

SKU: SKU: 66-39151
1.5" upper-strut-spacer front leveling kit with ARC brackets for GM 1500 models with Adaptive Ride Control.
The ARC-specific version of ReadyLift redesigned upper-strut-spacer leveling kit for the new-body GM 1500. It adds two repositioning brackets for the upper control arm so that Adaptive Ride Control performs correctly once the truck is leveled. Machined from CNC 6061-T6 aircraft-grade billet aluminum with a design specific to the 2019-2025 GM 1500 struts.
Fits: 2019-2025 GMC Sierra 1500 Denali and Chevy Silverado 1500 High Country equipped with Adaptive Ride Control (ARC), new body only. Not compatible with Super Cruise, Trail Boss, or AT4/AT4X.
Up to a 33x11.50R20 tire on a 20x9 0 offset wheel (minor felt-liner trimming may be required; some wheels may need a front spacer to clear the caliper).
For Denali and High Country 1500s equipped with Adaptive Ride Control; non-ARC trucks use 66-39150. Not compatible with Super Cruise, Trail Boss, or AT4/AT4X. Alignment is required after installation. Estimated installation time about 2 hours (excluding alignment and wheel/tire assembly). Backed by the ReadyLift limited lifetime warranty.
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