if i could find one, what year would be ideal
Depends if you want to use the Ford radius arm suspension. The 75-77 F-150 has welded-on radius arm mounts and they are easy to cut off. The 78-79 F-150 and fullsize Bronco have cast-in mounts that are pretty much impossible to remove. The 77 and earlier Broncos have narrower "Jeep-width" axles, but are low pinion front and have weaker 9" rear axles. In 1980, the F-150 and Bronco went to the TTB front axle.