You can also just buy new wheels in either 19.5" with the smaller Chevy 10 bolt pattern, or 22.5" with the two ton 10 bolt pattern. I went the new route for my bus. yeah, it was $1800 for six wheels, but they're modern and I'll never have to spend the money again. Of course, my Enterprise is a family heirloom at this point, so it will be in the family for a long time yet which makes it easier to drop large coin once so that someday when my grandkids are driving it and it needs tires, they'll be easy to get.