The Superlift 1.5-inch rear block kit for 1999–2010 Ford F-250 and F-350 Super Duty 4WD with 3 5/8-inch axle tube (without top-mounted overload leaf) adds 1.5 inches of lift at the rear. Included are two cast-iron blocks, four U-bolts and all nuts and washers needed for installation, plus Superlift’s limited lifetime warranty. It’s a direct-fit choice for compatible Super Duty trucks.
Superlift 99-10 Ford F-250 SuperDuty 1.5in Block Kit w/ 3 5/8 AxleTube w/o Top Mounted Overload Leaf