73 dart...B body 8.75...what size wheel/tire

Well, all I could get was a complete E body setup. BUT....there a local guy who cuts axles and housings, and does the re-splining.....all for $150. He's GOOD too. So now I can rock any width. I'm gonna take him my junk 7.25 with the 8.75.....and just have him match it up to the current width.