These coil-overs are valved specifically for the new body style (GMT 900 Platform) Chevrolet and GMC half ton, 2WD and 4WD applications. They not only drastically improve the off road characteristics of the vehicle, but increase the on road handling and performance as well. These shocks add an additional inch of wheel travel when used in conjunction with an ICON Vehicle Dynamics Arm (PT# 78600). They also offer an additional amount of lift height compared to our standard travel coil-over shocks.. TECH NOTE: Installation of ICON Delta Joint upper control arms recommended. Shock length requires trimming of factory droop stop to retain stock upper control arms.. Recommended Aftermarket Tires: 33" x 11.50" (Larger tires may fit but fender trimming and modifications will be required.). TECH NOTE: Also compatible with 2019 Chevrolet Silverado 1500 LD and 2019 GMC Sierra 1500 Limited. Recommended Aftermarket Wheels: ICON Alloys - 17x8.5 with 4.75” Backspace / 0mm Offset. Recommended Aftermarket Wheels: ICON Alloys - 18x9 with 5” Backspace / 0mm Offset. Recommended Aftermarket Wheels: ICON Alloys - 20x9 with 5” Backspace / 0mm Offset. Internal Nitrogen Reservoir for Compact Design and Optimum Performance. TECH NOTE: Not compatible with models equipped Magnetic Ride Control. 2007-2018 GM 1500 1-3" LIFT 2.5 VS INTERNAL RESERVOIR COILOVER KIT. ICON 07-18 GM 1500 1-3in 2.5 Series Shocks VS IR Coilover Kit. TECH NOTE: Not compatible with Hybrid models. 07-18 GM 1500 1-3" 2.5 VS IR COILOVER KIT. GM 1500 1-3" 2.5 VS IR COILOVER KIT. Coilover Spring and Shock Assembly. Lifetime guarantee on coil-springs. OEM Wheels & Tires Fitment: Yes. Less body-roll than stock truck. 2.5" Diameter shock Body. Clears 33" Tall Tires. GM 1500 COILOVER KIT

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