These Industry First KellTrac 2021+ F150 Raptor Adjustable Ride Height Kits are designed for the hardcore Raptor enthusiast who wants the ability to adjust their factory rear suspension height without changing the coil springs. They are also for those who are sick and tired of a stock raked stance. The lowest position drops the truck 1.375" and the highest position raises the truck 1.00" over stock, so if you are set on keeping OEM Suspension but want to change your ride height, from reverse drop leveled to a raised rear - this kit will fit your needs. If you want more height you can get a 1.50" rise with half-inch spacers from RPG, ours are not available yet.