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 is specified for setups without a top-mounted overload leaf and provides a rear ride-height increase to correct stance and aid tire fitment. It includes two cast iron blocks, four U-bolts and the necessary nuts and washers for installation and is backed by a limited lifetime warranty.
Superlift 99-10 Ford F-250 SuperDuty 3in Block Kit w/ 3 7/8 AxleTube w/o Top Mounted Overload Leaf