Supreme Suspensions - F250 F350 Lift Kit 3" Solid Aircraft Billet Front Coil Spring Spacers (Black) Ford F250 F350 Leveling Kit 4WD 4x4 FITMENT: 2005 - 2018 Ford F250 (4WD), 2005 - 2018 Ford F350 (4WD). CONTENTS: 2x Solid Aircraft Billet Coil Spring Spacers, Installation Hardware, Installation Instructions, Supreme Pro Signature Decals and Bottle Opener. TECHNICAL NOTES: 3 Inch Front Suspension Leveling Lift. INSTALLATION: Easy 'bolt-on' installation takes 2 to 4 hours. No special tools are required. BENEFITS: Improves the look of your truck and increases ground clearance, allowing you to fit larger custom rims and tires.