GMC Sierra 2019-2023 1.5" SST Leveling Kit

Calculated at Checkout

Product Overview

Fits: Chevrolet Silverado 1500 2019, 2020, 2021, 2022

GMC Sierra 1500 2019, 2020, 2021, 2022

1.5" Upper Strut Spacer Leveling Kit

CNC-Machined Billet Aluminum Construction

Allows for up to a 33x11.50-R20 tire on a 20x9 with a 0 offset wheel*

*note: minor trimming to felt liner may be required.

*note: some wheels may require front wheel spacers to clear the caliper

ReadyLIFT® is excited to offer a newly redesigned leveling kit for the GM 1500 series 2WD & 4WD trucks.  The new design provides a leveling solution via an all-new upper strut spacer instead of the horseshoe bottom strut design.  This new design helps with the installation process with less risk of contacting the CV boots when not installed properly.  These new kits offer a 1.5" leveling solution for the new body 2019-2022 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 2019-2022 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 1500’s equipped with ARC.  


This all-new leveling kit will allow for up to a 33x11.50-20 tire on a 20x9 0 offset wheel


NOTE:  To ensure proper leveling kit fitment, using a plumb bob line (for a clean vertical) to measure from the center of the wheel hub to the bottom edge of the fender at the 12 o’clock position while the wheels are pointing straight forward.  If this measurement is greater than 22’’ then the truck already has some factory or aftermarket front lift compared to a base truck. For distances measuring greater than 22’’ as described above, #66-3086 or #66-3085 should be modified to account for the pre-installed lift. To ensure proper front lift height and suspension geometry, install the ReadyLIFT leveling kit WITHOUT the lower horseshoe spacer. Incorrectly using these kits on a truck with 22’’ or more distance may result in component interference and/or excessive wear.


 (1) Not compatible with Chevy Trail Boss and GMC AT4 suspension.  (2) Not compatible 2019 Limited OLD Body Style.  (3) Some wheels may require 6mm or greater wheel spacer to clear the brake caliper.


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