2x?Rear High Strength Steel ShacklesPrecision CNC Machined for Outstanding Performance and QualityProprietary Protective Coating to Prevent Oxidation, Corrosion & RustIncludes complete set of High-Strength Installation HardwareInstallation InstructionsSupreme Shackle Lift Kits are engineered to provide your truck with the perfect lift and level. Our Rear shackles are made of High Strength Carbon-Steel and cut through a series of computer controlled processes, then coated to prevent oxidation and corrosion, keeping your kit looking great and functioning for years to come. Our kits install easily and does not require any cutting or welding, making them one of the easiest and safest kits on the market. Each shackle offers a superior lifted experience without changing the factory ride quality. An alignment is always recommended after altering the height of your vehicle. Installation for the whole kit can be completed in 1-2 hours using hand tools. No cutting or welding required and comes with all hardware and installation instructions required.