2007-2018 Silverado and Sierra Lift Kit 1500 3 Inch Front 2 Inch Rear Aircraft Billet Strut Spacers Lift Blocks and Extended U-Bolts | Leveling Kit (Black) LIFT: 3 inch front and 2 inch rear lift over stock FITMENT: 2007 - 2018 Chevrolet Silverado 1500 2WD + 4WD and 2007 - 2018 GMC Sierra 1500 1500 2WD + 4WD | NOTE: Will only fit 6-lug models MATERIAL: Premium 6061T6 aircraft aluminum with ideal strength and weight INSTALLATION: Bolt-on kit, only takes a few hours to install CONTENTS: Aluminum Strut spacers (2), Aluminum Lift Blocks (2), Extended U-Bolts (4), Hardware and Detailed Instructions - Liftcraft suspension lift and leveling kits come with a lifetime guarantee and are the easiest, safest, and most affordable way to improve the look of your truck and run bigger tires