Leveling Kits Fit: Compatible with 1999-2022 Ford F-250/F-350 Super Duty, 2000-2005 Excursion---4WD/RWD Only; 2021+ new models may has round U bolts, will not fit our square U bolts; Not Fit 2-PC drive shaft model; Does not fit a dually/overload leaf Springs, if your car has overload leaf springs,the U-Bolts will not longer enough.