Even if you find a later model one from a seventies truck you can get a spacer ring from Advanced Adaptors their cheap. I think I would just do the stud repair as I replaced the one in my 64 and immediately broke the new one they are not very strong and I would be willing to guess that the repair would be stronger anyway. I do weld cast and have thought about repairing the broken ones that I have here just haven't gotten around to it.