Zone Offroad torsion bar keys are made in the USA and are 100% resonant frequency tested to ensure a solid casting. Once tested the keys are CNC machined to ensure the proper amount of lift for your vehicle. This easy to install torsion bar key leveling kit is designed to lift the front of your Hummer H3 2 inches. The kit includes front shock spacers to allow use of the factory shocks, or Zone Offroad offers hydraulic and Nitro replacement front shocks.
