Supreme Suspensions - Chevy Silverado 2500HD 3500HD 1" to 3" Adjustable Front Steel Torsion Keys Suspension Leveling Lift Kit 4x2 4x4 Includes Torsion Bar Unloading Tool PRO Fits: 2011-2018 Chevrolet Silverado 2500HD 3500HD 2WD and 4WD. ONLY Fits 8-Lug Models Adjustable Key Designed to Lift Front End 1 - 3 Inches U-Shaped Tool Distributes Compressed Load Evenly Installation Instructions Included Maintains Factory Ride