Full-sized pickup trucks manufactured by the Ford Motor Co. have been dubbed F-Series since the late 1940s, making it the one of the oldest surviving American nameplates. The Super Duty name is reserved for three-quarter ton and higher weight classifications of the F-series. Super Duty trucks are very heavy and it's imperative that when raising the vehicle when changing a tire or for other maintenance you position the jack under the truck correctly to keep from causing injury or damaging the vehicle.
F-250 and F-350 2WD
Ford F-250 and F-350 2WD trucks with single rear wheels come with independent twin "I" beam front suspension. To raise either side of the front of the truck, you must place the jacking pad under the steel stud that's protruding from the axle "I" beam near the steering spindle. Correct jack placement to raise the rear of the truck is under the axle housing in between the leaf spring "U" bolts on the side of the truck that needs to be raised.
F-250 and F-350 4WD
Four-wheel drive Super Duty trucks have a solid front axle that's quite different from its two-wheel-drive counterpart. The jacking pad must be placed under the flat area on the driver's side of the front differential. On the passenger side, the jack must be placed under the axle housing near the steering spindle. Correct jack placement on the rear of the truck is the same as two-wheel-drive vehicles -- under the axle housing in between the leaf spring "U" bolts.
F-350, F-450 and F-550 2WD
Two-wheel-drive Super Duty trucks that come with dual rear wheels have an independent twin "I" beam suspension, but the jacking point is different than the lower weight-class trucks. The jacking pad must be placed under the "I" beam near the steering spindle on the side of the truck that's to be raised. The correct jack placement on the rear of F-350 trucks is under the rear axle housing in between the leaf spring "U" bolts on the side of the truck that needs to be raised. On F-450 and F-550 trucks, place the jack under the rear axle housing just inboard of the leaf spring "U" bolts.
F-350, F-450 and F-550 4WD
Jack placement on the front of four-wheel drive models is the same as the F-250 and F-350 -- under the flat area on the driver's side of the differential and under the axle housing on the passenger side. The jack must be positioned in such a way that it doesn't interfere with the suspension radius rod on the passenger side. Rear jack placement is the same as two-wheel drive models.