2x?Front Billet Lift Spacers2x?Rear Steel Tapered Lift Blocks4x?Square Bend U-Bolts4x 2" Hub Centric Wheel Spacers6 x 135mm Bolt Pattern 87mm Center BoreIncludes M14 x 2 High-Strength HD spec spline type wheel studsHigh-Strength Installation Hardware and Installation instructionsPrecision CNC Machined for Outstanding Performance and QualityProfessional Protective Coating to Prevent Oxidation & RustAllows installation of wider wheels & tires, while preventing rubbingIMPORTANT:* 2009+ MODELS WILL NOT FIT 3" OR 3.5" FRONT LIFT SPACERS.* FX4 MODELS WILL NOT FIT 3" OR 3.5"* 4WD MODELS COME WITH A 1.5" FACTORY BLOCK INSTALLED, WHICH WILL BE REPLACED BY OUR 3" LIFT BLOCK RESULTING IN A 1.5" ADDITIONAL REAR LIFT.?*WILL NOT FIT 2004 HERITAGE MODELS**Wheel Spacers Don't fit Dually ModelsPlease check out our installation video:We are proud to offer you our High End Leveling Lift Kit are made out of Aluminum Components and Steel. Front Spacers are precision CNC machined from T6 Aircraft Aluminum, then Anodized for a superior corrosion resistant finish. The SOLID single-piece construction ensures extreme compression resistance, while still being light-weight and resistant to typical corrosion associated with off-roading. Developed and rigorously tested by in-house engineers, our blocks are precision machined from 1-piece CNC formed steel frame using heavy-duty GMAW seam and fillet welding processes. Our Heavy Duty Steel rear blocks are constructed with dual pins specific for the F-150 models and a 1/4" Thick CNC Plasma Cut Center Support Structure to ensure stability, perfect fitment and easy installation. These Blocks are fabricated with Built-In Tapper to Optimize Pinion Angles and preserve stock ride quality. We complete this kit with our newly designed set of zinc phosphate coated U-bolts, ISO 9001 certified and stamped to satisfy the highest quality control standards. Supreme Suspensions U-bolts are five times more corrosion resistant than those with typical zinc plating, in accordance with ASTM B117 testing.Our Pro-Billet Series Lift 2" wheel spacers are precision engineered to widen your track-width, improving the look of your vehicle and accommodating wider custom rims and tires. Each spacer features splined studs that are pressed into place rather than glued as in many of the lesser, knock-off wheel spacers on the market. Once our spacers are properly installed, they stay installed without the risk of vibrations or imbalance. Please verify fitment compatibility prior to ordering.Note: Please be sure to check with your local DMV before you purchase the 3" rear lift for your 4WD model, as it is illegal in some states to stack rear blocks. An alignment is always recommended after altering the height of your vehicle.**An alignment is always recommended after altering the height of your vehicle**