Performance Accessories 3-inch Body Lift Kit PN-503 raises the vehicle for adding larger diameter tires, without altering the factory suspension system and OE ride characteristics. The kit includes high pressure fiberglass reinforced nylon lift blocks, high strength hardware, and extension brackets. A set of urethane wheel-well extensions (Gap-Guards 2wd & 4wd PN-6524) are available separately, and are used to conceal any gaps between the body and frame in the wheel wells. For the rear bumper area a one piece rear bumper urethane Gap-Guard is available separately (Rear Bumper Gap-Guard PN-6522) and is used to conceal the gap between the tailgate and the rear bumper. This system can be installed in 6 to 7 hours and comes complete with everything necessary for installation. Additional Information: Fiberglass reinforced nylon body blocks Laser cut and zinc plated fittings and brackets High strength hardware included Made in the U.S.A.