Supreme Suspensions - Wrangler 2" Front Suspension Lift + 2" Rear Suspension Lift CNC Machined High-Crystalline Delrin + Pro Performance Series Shocks Jeep Wrangler TJ Leveling Kit (Black) PRO CONTENTS: 4x High Crystalline Delrin Spring Spacers, 4x Performance Series Shocks, 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 are required.