This is a tough question - F-150's had two hub styles, and for some dumb reason, the brakes are totally different. Here's what we need to know:
Do you have Ford manual hubs with no screws around the perimeter (oddball), or do you have aftermarket manual hubs with screws around the perimeter, that look like they'd also fit a Jeep or a Chevrolet.
Either way, you could probably find both answers in a half-decent manual.