Supreme Suspensions - Jeep Grand Cherokee ZJ Lift Kit Full 2" Front + 2" Rear Suspension High Tensile Strength Delrin Spacers PRO FITMENT: 1993 - 1998 Jeep Grand Cherokee ZJ (2WD 4WD). CONTENTS: (2x) High-Crystalline Delrin Front Spring Spacers, (2x) High-Crystalline Delrin Rear Spring Spacers, Installation Instructions, and Supreme Suspensions Pro Pack. TECHNICAL NOTES: 2 inch front and 2 inch rear lift. Maintains factory ride quality. INSTALLATION: Easy 'bolt-on' installation takes 2 - 4 hours. No special tools are required. BENEFITS: Improves the look of your Jeep and increases ground clearance, allowing you to fit larger wheels and tires. Delrin has the highest tensile strength of any thermoplastic and does not compress under load.