The Superlift 5-inch block kit for 1999–2010 Ford F-250 and F-350 Super Duty 4WD with 3 7/8-inch axle tube is for applications without a top-mounted overload leaf and provides a substantial rear lift to change stance and create extra tire clearance. The package includes two cast iron blocks, four U-bolts and the nuts and washers required for installation, and carries Superlift's limited lifetime warranty.
Superlift 99-10 Ford F-250 SuperDuty 5in Block Kit w/ 3 7/8 AxleTube w/o Top Mounted Overload Leaf