The Superlift 3-inch block kit for 1999–2010 Ford F-250 and F-350 Super Duty 4WD with 3 5/8-inch axle tube includes top-mounted overload leaf compatibility and provides a significant rear lift to improve stance and tire clearance. The package contains two cast iron blocks, four U-bolts and the nuts and washers required for installation, and Superlift backs the kit with a limited lifetime warranty.
Superlift 99-10 Ford F-250 SuperDuty 3in Block Kit w/ 3 5/8 AxleTube & Top Mounted Overload Leaf