Rough Country - 1095 - 2-inch Wheel Spacer Pair (8-by-6.5-inch Bolt Pattern) for Chevrolet: 01-06 Silverado 1500 HD 4WD, 01-10 Silverado 2500 HD 4WD, 01-06 Silverado 3500 4WD, 07-10 Silverado 3500 FEATURES: Fits 8-by-6.5-inch bolt pattern; Does not fit dually models; Spaces wheel 2-inches, allowing use of wider tires; Made from 6061-T6 Aluminum; Spacers are corrosion resistant; Studs are preinstalled; Sold in pairs NOTES: Fits 8-by-6.5-inch bolt pattern; Does not fit Dually models; Sold in pairs KIT CONTENTS: (2) 2-inch wheel spacers SPECS: Installation Time: 1 hours; Weight: 14.3-lbs FITMENT: Chevrolet: 01-06 Silverado 1500 HD 4WD, 01-10 Silverado 2500 HD 4WD, 01-06 Silverado 3500 4WD, 07-10 Silverado 3500 HD 4WD; GMC: 01-06 Sierra 1500 HD 4WD, 01-10 Sierra 2500 HD 4WD, 01-06 Sierra 3500 4WD, 07-10 Sierra 3500 HD 4WD; Ram: 12-16 2500 4WD, 12-16 3500 4WD