Supreme Suspensions - Silverado Lift Kit Adjustable 1 - 3" Front Suspension Lift High-Strength Carbon Steel MAX-Torsion + 2" Rear Suspension Lift T6 Aircraft Billet Chevy Silverado Leveling Kit 4WD CONTENTS: 2x Cold-Forged Carbon Steel MAX-Torsion Keys, 2x Solid Aircraft Billet Lift Blocks, 4x Extended Zinc Plated U-Bolts, Installation Hardware, Installation Instructions and Pro Pack. FITMENTS: 1997 - 2006 and Classic 2007 Chevy Silverado 1500 (4WD Only); Does not work with Overload springs. TECHNICAL NOTES: Adjustable 1 - 3 inch front lift and 2 inch rear lift. Maintains factory ride quality. Fits 1500 6-lug 4WD. BENEFITS: Improves the look of your truck and increases ground clearance, so you can fit larger tires. Factory shocks can be reused. TWICE as strong as factory keys and indexed for lift. Solid light weight blocks CNC machined from Aircraft Billet. INSTALLATION: Easy bolt-on installation takes 2 - 4 hours. A torsion bar puller is required.