15” wheel question

Yes, I have seen them on mid-1960s 1/2 ton pick ups if you have installed the larger bolt pattern axles & hubs?

There is also a guy selling centers that can be welded into 15" hoops, photos & information at https://board.moparts.org/ubbthread...h-dog-dish-cap-wheel-centers.html#Post2412794
Those are big bolt wheels though. The OP has small bolt.