Supreme Suspensions - Grand Cherokee Lift Kit Full Suspension Lift 2" Front + 2" Rear Lift + Pro Performance Series Shocks Jeep Grand Cherokee ZJ Lift Kit (Black) PRO CONTENTS: 4x Delrin Spring Spacers, 4x Performance Series Shocks, Installation Hardware, Instructions and Pro Pack. TECHNICAL NOTES: 2 inch front suspension lift and 2 inch rear suspension lift. Maintains factory ride quality. BENEFITS: Improves the look of your Jeep and increases ground clearance, so you can fit larger tires. Upgrades performance with pro series shocks. Delrin has the highest tensile strength of any thermoplastic and does not compress under load. INSTALLATION: Easy 'bolt-on' installation takes 2 - 4 hours. No special tools required.