The 3 piece semi drop center wheel was the common wheel used on Chev and GMC 1 tons and an option on 3/4 ton GMC. I think Ford used a 17" drop center (one piece) wheel that used 17" tube required tires at one time. Ford and GM used the same 8 hole bolt pattern. The center hole on a Ford was a little larger than GM. A Ford wheel will fit a GM but a GM will not fit a Ford. It could be a Ford wheel. It was common to use what you could make fit in the time this vehicle was still in use.