2x?Front Carbon Steel Lift Spacers2x?High-Strength Steel Rear Lift Blocks4x?Premium Electrostatic Powder Coated U-BoltsInstallation InstructionsIMPORTANT: U-BOLTS FIT 3.5" AXLES ONLY. KIT WILL NOT FIT MEGA CAB MODELSOur Supreme Pro-series full lift Kits are engineered to lift and level your truck for a truly customized ride. Each front spring spacer is designed to mount directly to your truck to seat your spring properly without the need to cut or weld. Machined from high-grade carbon steel then hard coated to prevent rust and corrosion when out in the elements. ASTM-Certified Structural Steel Tube milled in Omaha, Nebraska to ISO 9001. ONE Piece of Forged Steel. Our Heavy Duty Steel rear blocks are constructed with one 3/4th Center Pin to ensure stability, perfect fitment and easy installation. Each block receives our signature anodize coating to protecting it from the elements, giving you a part that will last for the life of your ride. We complete this kit with our electrostatic powder coated U-Bolts and hardware, keeping everything secure to your suspension. All Supreme Suspensions products are developed and rigorously tested by in-house ASE certified specialists to ensure the proper road safety.Notes: 4WD models only. If you have 4" axles please give us a call to place your order. An alignment is always recommended after altering the height of your vehicle.