up to a 96 f150
up to a 97 Heavy duty f250 and f350
You also need to match up cab configuration.
reg cab works in reg cab and crew cab(front and back)
crew cab(front and back) will work in a crew cab
supercab will only work in a supercab
Bronco will only work in a bronco
^^^^^that list is for dirrect bolt in. You can swap seats between cabs but will need to modify