2021 GMC Sierra AT4 Parts

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2021 GMC Sierra AT4 Suspension Leveling Kit Zone Offroad

1.75" Leveling Kit
Complete 1.75" leveling recommended for AT4, Trail Boss suspension not as raked for the factory so installing without thin preload spacer will net 1-3/8" lift for a level stance. Tires wider than 295 cannot be installed on factory wheels due to clearance issues to the steering knuckles. Will not fit Adaptive Ride Control (ARC) equipped models. 2022 Models: This system has not been tested on models equipped with Super Cruise. Tire and Wheel Fitment: 5.5" MAX Backspacing due to UCalifornia Clearance 35/12.50 18x9, 20x9; 5.5" BS (Chevy) 33/12.50 18x9, 20x9; 5.5" BS (GMC) 295/60 20x9; 5.5" BS (GMC) 295/60 20x9, 5.5-4.5" BS (Chevy) 305/55 20x9, 5.5-4.5" BS (GMC & Chevy) 295/65 18x9, 5.5-4.5" BS (GMC & Chevy) 295/70 17x9, 5.5-4.5" BS (GMC & Chevy)
Specially designed for the 2019-2021 Chevy Trail Boss and GMC AT4 trucks, these kits are designed to a higher standard, working within the parameters of the factory suspension and steering geometry to maximize potential while allowing optimal clearance for larger tires. Kits include strut spacers, adventure series upper control arms, hardware packs and steering stop extensions.
In the box: Strut Spacers Upper Control Arms
Product Attributes:
- Lift Type: Leveling Kit
- Welding Required: No
- Is Adjustable: No
- Front Lift Method: Strut Spacers & Preload
- Cutting Required: No
- Accommodates Factory Wheels: Yes
- Wheel Size: See Notes
- Back Spacing: See Notes
- Front Lift Height: 1.75"
Features:
- piece design with top mount spacer and 2 preload spacers to raise ride height without over-extending suspension during droop travel
- High strength adventure series upper control arms allow more travel, increase strength and correct issues caused by kits using the factory UCAs
- Maintains ride quality and handling characteristics
- Allows clearance for 33-34" tires
- Includes Factory Protection Plus