Supreme Suspensions - Chevy 1500 Series Lift Kit Adjustable 1-3" Front Suspension Lift MAX-Torsion High-Strength Carbon Steel + 2" Rear Suspension Lift CNC Machined Aircraft Billet + Rear Block Alignment Shims 4WD 4X4 PRO CONTENTS: 2x Cold-Forged Carbon Steel MAX-Torsion Keys, 2x Solid Aircraft Billet Lift Blocks, 4x Extended Zinc Plated U-Bolts, 2x Axle Pinion Alignment Shims, Installation Hardware, Installation Instructions and Pro Pack. TECHNICAL NOTES: 1 - 3 inch front suspension lift and 2 inch rear lift. Maintains factory ride quality. For 4WD models only. 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.