ProComp 3.0" Rear block kit for 2004-2020 Ford F150 4WD trucks. Comes complete with vehicle specific heavy duty u-bolts and hardware. Factory style construction. Includes factory style bump stop landing and location pins. Adds a nice rake for towing or hauling additional weight in the bed. Easy to install. Does not require any permanent modifications. Note: Block is 3 inches tall. Amount of lift provided depends on the size of the factory block you remove. For use on trucks with rear leaf springs and blocks only.