The Kryptonite Leveling Key Set KRKEY11 is an economic way to raise the front of your GM Silverado/Sierra 2500HD/3500HD. You can raise the front of your truck to the level of the rear by using this Kryptonite key set. For a tighter, more stable fit, these torsion keys are made to grip the flat hex area of the torsion bar. Because they are forged, Kryptonite torsion keys are 25% stronger than stock units and have a corrosion-resistant finish. Larger tires can be added with clearance thanks to the adjustable torsion keys, which raise the front by two inches. This kit was designed to maintain the stock ride quality and will not put additional strain on the factory suspension components. FEATURES:• Raises The Front 2"• Forged Torsion Keys• 25% Stronger Than OEM Units WARRANTY INFO:Lifetime Vehicle Applications: 2011-2019 GM SILVERADO/SIERRA 2500HD/3500HD 2WD/4WD SPECIFICATIONS Fuel Type Diesel / Gas Prop 65 WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov