3-Inch Block and U-Bolt Kit for Ford F-250 (1999-2010)

3-Inch Block and U-Bolt Kit, fitment-checked

Rough Country 6552 pairs 3-inch fabricated steel blocks with round U-bolts for 1999-2010 Ford F-250 and F-250 Super Duty pickups. The blocks measure 2.5 inches wide, seat on a single 9/16-inch pin, and carry a taper that cuts down the working angle at the driveshaft. U-bolts use a 5/8-inch thread with a 3.625-inch inside width and 16.5-inch inside length. Trucks with overload springs and dually models sit outside the fitment.

Fitment runs across F-250 and F-250 Super Duty trims from XL and XLT through Lariat, King Ranch, Cabela's, FX4, and Harley-Davidson Edition, in both 4WD and RWD, covering 1999-2009 on the F-250 and 1999-2010 on the Super Duty. Fabricated steel is used instead of cast, and the black powder coat on the blocks is matched by e-coated, corrosion-resistant U-bolts. Confirm your truck has neither overload springs nor a dually axle before ordering, and check the U-bolt inside dimensions against your spring pack. Rough Country lists the job at 2-3 hours.