2x Front?Delrin Lift Spacers2x Front?Delrin Lift Spacer Plates2x Rear Delrin Lift SpacersInstallation Instructions and HardwareOur Pro-Series full lifts are designed to accurately lift and level your truck for a truly customized ride. Our front spacersĀ are CNC machined from solid Delrin thermoplastic blocks. Our front lift is also designed to mount directly to your factory struts for a seamless install process. Our Supreme rear coil spacers are precision engineered to lift and level your truck with ease. Our rear coil spacers are CNC machined from solid Delrin thermoplastic blocks. We use Delrin specifically for our precision parts requiring high stiffness, low friction and excellent dimensional stability. Unlike polyurethane style spacers, our rear spacers will not dry up and will maintain a proper lift amount for the life of your vehicle.NOTES: An alignment is always recommended after altering the height of your vehicle.*Does not work with air suspensions