2x High-Density Delrin Coil Spring Spacers2x High-Strength Steel Lift ShacklesInstallation Hardware and Instructions? Does NOT fit Cherokee XJ models with welded bump stops.Our Jeep coil spring spacers are meticulously engineered and precision CNC machined from High-Density Delrin for superior durability and corrosion resistance. Its high crystalline composition provides superior strength along with enough flex to maintain your stock ride quality. Designed to work with your existing factory components, these spacers install with ease and involve no additional modifications to be made to your suspension. We've also incorporated an integrated raised lip into each front spacer to ensure proper spring alignment and prevent slip-outs under harsh suspension angles.Supreme Suspensions Lift Shackles are precision laser cut and CNC formed out of 3/16" A572-50 Steel, welded to a Heavy-Wall Steel Barrel to provide excellent strength and resistance to deformation. Also, our shackles are fitted with Pre-Lubricated Poly Blend Bushings, and Zerk fittings on the bushing housing to provide a long lifetime of durability, easy maintenance, and minimized noise.From structural integrity to quality hardware, we have you covered, so please install with the utmost confidence!*An alignment is always recommended after altering the height of your vehicle.