Originally Posted by 52'F-3
most fullsize truck axles are alittle wide (in my opinion)
that said, i think the older ford bronco's front Dana 44 axle with Radius arms and coil springs would be a good swap.
it's more difficult than a leaf spring straight axle swap.
i'm sure some other will post, any solid axle/leaf spring swap would be simplest.
66-77 bronco track width is too narrow for the F1, though not by much. A local here, used a ranger frame to great success....I just wish I could get a hold of him. (schedules ya know) My guess would be to try a full size truck from 59-72. With an Atlas t-case that is indexable for clearance issues.