Fitment: This kit is not designed for dually models, but may me easily adapted to accommodate your truck. Please contact customer support and they will help you find a solution. Shocks or Brackets Required: Factory shocks don't allow adequate suspension travel once lifted, shock extension brackets or aftermarket (longer) shocks are strongly recommended. To determine which kit # is required, verify which RPO codes are shown in the glovebox to determine the factory installed torsion keys. The following RPO codes require the C1202/C1212/C31 kits: FT2 - FT3 - FT4 - FT5 - FT6 - FT7, while RPO codes FK2 - FK3 - FF6 - FF7 - FF8 - FF9 require the C1203/C1213/C32 kits.. Take your truck to new places with this complete 2" lift kit for your 2001-2010 Chevy/GM 2500/3500 truck. This easy-to-install kit has front torsion keys and rear blocks and bolts, giving you clearance for tires up to 33 inches. Get the look you want and the price to match.. Castings are resonance frequency tested to ensure they are defect-free and ready to withstand any abuse. Rear lift block and longer U-bolts for easy installation. Maintains a tail high stance. Front shock extensions allow use of factory shocks. 100% bolt-on design for easy installation. Zone Offroad 01-10 GM K2500 2in Lift Kit. Zone 2" Torsion Key Lift Kit. 01-10 GM K2500 2in Lift Kit. 2" Tor Key Lift Kit. Suspension Lift Kit

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov