Supreme Suspensions - 4WD Ford F150 Leveling Kit 1.5" Front Aircraft Billet Coil Spring Spacers (Silver) FITMENT: 1981 - 1996 Ford F-150 (4WD). CONTENTS: 2x Aircraft Billet Front Spring Spacers, Installation Hardware, Installation Instructions, and Supreme Suspensions Pro Pack. TECHNICAL NOTES: 1.5 inch front suspension leveling lift. Factory shocks can be reused without compromising ride quality. INSTALLATION: Easy bolt-on installation takes 1 to 2 hours without the need for special tools. An alignment is recommended after install. BENEFITS: Improves the look of your vehicle and increases ground clearance, allowing you to fit larger custom rims and tires.