I have a '65 Chevy C30 dually. It had factory split rims on it, which were lug-centric. I acquired a set of later model dually rims and they are not lug-centric, so they don't fit properly. If they were hub-centric or lug-centric, they would have worked, so I think the important thing is making sure, if they fit over the hub, they are lug-centric.
