4 Inch Lift Kit | AT4/Trailboss | M1/M1 | Chevy/GMC 1500 (25-26)

Explore New Heights: Rough Country's 4-inch Suspension Lift is designed to enhance the bold, aggressive styling of GM's all-new fourth-generation Sierra 1500 AT4 and Silverado 1500 Trailboss, already equipped with GM's factory two-inch kit.

Innovative Design and Construction: Combines durable steel knuckles, differential brackets, and drop cross members to reduce CV angles and simulate factory angles while achieving new heights. Upper strut spacers offer uncompromised strength and rigidity, while rear blocks, shocks, and u-bolts retain factory-like geometry. Provides clearance to run 35" tires without additional modifications.

Configurable Shocks: Available with all Rough Country shock options, from nitrogen-charged N3 shocks to Vertex reservoir shocks.

Installation: Requires minor cutting and a strut compressor; estimated 8-10 hours to complete at home.

Warranty: Backed by a Limited Lifetime Replacement Warranty against structural and workmanship defects.