The 15s fit I think all 75 and up rear axles and most/all V8 axles down to 73.
15s are all 5 on 4.5bc, unless custom ordered.
The problem comes when mounting 15s on the older axles with the smaller registers. Since the holes in the center of the 15s are too big, it fits on just fine, but has no support and may not center up properly. And you have to redrill the axles and drums if they are currently 5 on 4" bc. And the new studs need to be 1/2" so that the lugnuts will retain the wheels properly. So no, you cannot retrofit factory 15s on any 72 and older car, nor some 73s to 74s with six cylinders and the occasional teener car.
If you want to put a 15 on your 5 on 4"bc car you will need a custom wheel. It will have a 14 inch spider in it and 15" hoops. You will need to specify the backspace. Wheel Vintiques will put together what you need. This is the only way to get the Mexican Sombrero centers to fit.
But if you have any non A-body rear-end in that Duster, then any old 15 will bolt on. You just need to get the backspace right.Same goes for any 8.25 or any 75 up 7.25, that is to say any rear end that came from the factory with a 5 on 4.5 pattern.All factory 15s have the later centers, which I kindof like better.
If you are using the KH stoppers,on the front, Wheel Vintiques needs to know this, as not just any old 14" spider will fit around those calipers.
