Compatibility 1999-2020 Ford F250 Super Duty 2WD 4WD 1999-2020 Ford F350 Super Duty 2WD 4WD 2000-2005 Ford Excursion 2WD 4WD **Will not fit special XL Model or Extended Cabs. **Will Not Fit vehicles with Twin I-Beam Suspension. **Does not fit Airbag Suspension Systems **Does not fit a Dually/Overload Leaf Springs, if your car has overload Leaf Springs, the U-Bolts will not longer enough **Not Fit 2-PC Drive Shaft Model **Please Check Your Truck's Suspension Setup Before Ordering. .