The Superlift 2.5-inch block kit for 1999–2010 Ford F-250 and F-350 Super Duty 4WD with 3 5/8-inch axle tube and top-mounted overload leaf offers a balanced rear lift while maintaining overload components. The kit ships with two cast iron blocks, four U-bolts and the nuts and washers required for installation. Superlift supports the kit with a limited lifetime warranty.
Superlift 99-10 Ford F-250 SuperDuty 2.5in Block Kit w/ 3 5/8 AxleTube & Top Mounted Overload Leaf