2x High-Strength Steel Front Lift Spacers2x High-Strength Steel Rear Lift Blocks with 3/4th Pin4x Premium Electrostatic Powder Coated U-Bolts2x High-Strength Steel Sway Bar Relocation BracketsInstallation InstructionsIMPORTANT: U-BOLTS FIT 3.5" AXLES ONLY. PLEASE CONTACT OUR CUSTOMER SERVICE TEAM IF YOU ARE UNSURE ABOUT YOUR REAR SPRING SETUP.Supreme Suspensions 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 ASTM-Certified Structural Steel Tube milled in Omaha, Nebraska to ISO 9001, and powder coated to prevent rust and corrosion, these spacers will ensure a lifetime of dependability under even the most extreme riding conditions.Our 1" Heavy-Duty Steel Blocks are constructed from one solid block of Steel, while the 1.5" and 2" Rear Lift Blocks are precision machined from ONE 1/4" thick plate of Steel, 3 times bend and precision welded using heavy-duty GMAW seam and fillet welding processes to ensure maximum strength and a lifetime of dependability under even the most extreme riding conditions. To maximize their strength and resistance to deformation, we reinforced the structure of these blocks with a 1/4" thick CNC plasma cut center support structure, completely welded to the frame. These blocks can withstand an astonishing load of almost 60,000 lbs with no yielding or deformation observed!We complete this kit with our High-Strength Steel U-Bolts, bent & threaded to exact specifications, and finished with an Electrostatic Powder Coating to ensure the maximum level of protection and corrosion resistance. Especially engineered for off-road and heavy duty applications, these U-bolts will restore the clamping force on your spring assembly, maximizing safety and ensuring that you get the most out of your rear lift.Notes: 4WD models with 3.5" rear axle 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.