K299B | Superlift 4 inch Suspension Lift Kit with Bilstein Rear Shocks (2019-2022 Silverado, Sierra 1500 AT4 & Trailboss 4WD)

This is a complete 4 inch Lift kit for the 2019-2021 Chevrolet Silverado Trail Boss and GMC Sierra AT4 4WD
Covered by our Limited Lifetime Warranty
Does not work with GM 1500 Models that include adaptive Ride Control

What does it include?
Front CNC machined steering knuckles, ¼” plate steel control arm cross-members, differential drops, differential skid plate, fabricated rear blocks, U-bolts, and rear shocks (Bilstein).
Detailed instruction manual walking you step-by-step through the lift kit installation procedures suitable for do-it-yourselfers (DIY) or professional installation.
The best customer service and technical help in the industry.

Take your 2019-2021 Chevrolet Silverado Trail Boss or GMC Sierra AT4 to new heights with Superlift’s 4” lift system. Superlift Suspension’s Lift Kits have a strong, modern die-formed design made with the strongest materials to give you a suspension kit that can withstand the most challenging terrain. Superlift Suspension intentionally over-builds our suspension kits to be the best. Our uniquely engineered design adds strength and durability, along with bonus features that others do no offer.

This kit includes front knuckles, front strut spacers, ¼” plate steel control arm cross-members, differential drops, differential skid plate, fabricated rear blocks, u-bolts, and rear shocks. All required parts are included to make sure your Chevrolet Silverado or GMC Sierra handles and performs in all conditions.

Features:
Designed using Original Equipment (OE) CAD data for suspension accuracy
Ductile Iron Steering Knuckle for durability
Clearance up to a 35” tire
Cross-members constructed out of ¼” plate steel.
Aligns to OEM specifications
Corrects Front to Rear factory rake for a more level stance
Anti-Wrap Fabricated Rear blocks and u-bolts for rear lift
Grade 8 Hardware
Allows for 20” or larger aftermarket wheel
Backed by our Limited Lifetime Warranty

Benefits:
Retains OEM alignment specifications
Industry best ride quality
No excessive ball joint or steering components
CV axle angles are in the stock parameters
Maintains OEM like ride quality and handling characteristics

Technical Notes:
Installation time: 7-8 hours
Difficulty level: 2 of 5

Does NOT fit with Factory Wheels
Does NOT fit AT4X models
20 inch or larger aftermarket wheels are required w/ 4.5” of back spacing
Requires cutting and drilling
Does not work with GM 1500 Models that include adaptive Ride Control
Some minor trimming may be required in order to clear tires larger than 35”
Do Not combine with any other suspension lift
Due to GM’s larger Front Brake set up on the 2019-2010 models, check with the aftermarket wheel manufacturer for wheel compatibility. It is highly recommended that all tire and wheel combinations should be test fitted prior to installation