2x Front Steel Spring Spacers2x Rear Steel Lift Blocks4x Premium Electrostatic Powder Coated U-BoltsInstallation InstructionsPrecision CNC Machined for Outstanding Performance and QualityProprietary Protective Coating to Prevent Oxidation, Corrosion & RustIncrease Ground Clearance & Install Custom Plus Sized Rims & TiresIMPORTANT: Does NOT Fit 2WD Vehicles or Mega Cab Models.** U-BOLTS ARE INTENDED FOR VEHICLES WITH 3" WIDE REAR AXLE. * PLEASE CHECK FACTORY U-BOLT SIZES BEFORE ORDERING*PLEASE CONTACT OUR CUSTOMER SERVICE TEAM IF YOU ARE UNSURE ABOUT YOUR REAR SPRING SETUP. We are proud to offer you our High End Lift Kit made out of Steel Components, designed by our experts with your OEM ride quality and comfort in mind as well as lifetime use. ASTM-Certified Structural Steel Tube milled in Omaha, Nebraska to ISO 9001. Developed and rigorously tested by in-house engineers using only the latest in metal fabrication technology, each piece is Precision Laser Cut & Welded for outstanding performance and quality and finished with a proprietary coating to protect them against the elements, ensuring a lifetime of dependability under even the most extreme riding conditions.For the rear of your vehicle, we are proud to introduce the New 2019 Low Weight HD Structure Steel Blocks. Using Heavy-Duty GMAW seam and fillet welding processes we reinforced it's structure with a 1/4" Thick CNC Plasma Cut Center Support Structure and a 9/16th Center Pin to ensure stability, perfect fitment and easy installation. LAB Tests have shown these blocks can withstand an astonishing load of almost 60,000 lbs with no yielding or deformation observed!We've also made sure the extended U-bolts we provide rise to expectation, being ISO 9001 certified and stamped. Notes: 4WD models only. If you have a 2WD model please give us a call to place your order. An alignment is always recommended after altering the height of your vehicle.