Liftcraft - Full 3" Front + Rear Lift Kit For 1997-2007 Chevy Silverado 1500 6-Lug 4x4 | Carbon Steel Adj. 1 to 3 inch Torsion Bar Lift Keys, 6061T6 Billet Lift Blocks and Shock Extensions LIFT: 1-3 inch adjustable front and 3 inch rear suspension lift over stock FITMENT: 1997 - 2007 (classic) Chevrolet Silverado 1500 6-lug 4WD models MATERIAL: High Strength Steel Torsion Bar Lift Keys and Shock Extenders | 6061-T6 Billet Aluminum Lift Blocks INSTALLATION: Bolt-on kit, only takes a few hours to install; No modifications required CONTENTS: Carbon Steel Torsion Keys (2), Aluminum Lift Blocks (2), Extended U-Bolts (4), Carbon Steel Shock Extenders (2), 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