Uni lugs- turn the spacers around and it'll fit a Ford-or a Chevy

It was easier to use a huge oblong hole and spacers with an offset hole, than to make 3 sets of rims. One set of spacers would be used for 4inch, or turn them around and it would work on 4.5inch Mopars. A different set of spacers with the hole in the center, and you had 4.25inch.