Includes 2 Front T6 Billet Aluminum Strut SpacersIncludes 2 Rear High-Strength Steel Lift ShacklesIncludes 1 Differential Lowering KitPrecision Manufactured for Outstanding Performance and QualityProprietary Protective Coating to Prevent Oxidation & RustIncrease Ground Clearance & Install Custom Plus Sized Rims & TiresPrevents Premature CV Axle Failure & Reduces Front Axle VibrationIncludes Complete Set of High-Strength Installation HardwareSimple Instructions for Easy, Do It Yourself InstallationIMPORTANT: This kit is NOT compatible with Rock Warrior Model. Supreme Suspensions PRO-Billet Strut Spacers are meticulously engineered and precision CNC machined from T6 Aircraft Aluminum, then Anodized for a superior corrosion resistant finish. Billet Aluminum is premium choice material to use when leveling your truck thanks to the SOLID single-piece construction which yields extreme compression resistance, while still being light-weight and resistant to typical corrosion associated with off-roading.Our Rear Lift Shackles are engineered to lift the rear end of your truck by 1.5 inches without sacrificing your OEM factory ride quality. Each shackle is precision Laser Cut from High Strength Steel for outstanding performance & quality, providing excellent strength and resistance to deformation.NOTES: Please note that front spacer thickness to lift height is not a 1:1 ratio. Strut spacer installation alters the angle of the lower control arm, and this accounts for an additional lift beyond the actual thickness of the spacers.An alignment is always recommended after altering the height of your vehicle.