RTZ - Chevrolet GMC Silverado Sierra Front 2.5" Polyurethane Strut Lift Spacers Leveling Kit 4WD Black Made in the USA & Life-time Warranty Easy Bolt-On Installation. No Cutting, No welding, or other parts needed. Just an alignment after the installation! Improves appearance of your pickup and maintains comparable factory ride. Fits 2007-2017 Chevrolet Silverado Sierra GMC C1500 1500 2wd & 4wd. Includes: Pair of 2.5" Front Polyurethane Lift Strut Spacers and Hardware. Check our other listings for different heights.