The Superlift 3-inch block kit for 1999–2010 Ford F-250 and F-350 Super Duty 4WD with 3 7/8-inch axle tube and top-mounted overload leaf raises the rear to correct stance and expand tire clearance while retaining overload hardware. Kit contents include two cast iron blocks, four U-bolts and all nuts and washers needed for installation. Superlift backs the kit with a limited lifetime warranty.
Superlift 99-10 Ford F-250 SuperDuty 3in Block Kit w/ 3 7/8 AxleTube & Top Mounted Overload Leaf