Information on upper A arm mounts for a 63 Valiant.

All,

What's the compatibility years on those, and any suggestions on where I could get them?

Tearing apart the front to put on disk brakes and rebuild discovered the upper A arm mounts (and frame underneath) are rusted out pretty bad. If I can find a clean front clip, I'll do that, but if I can just get the A arm mounts and do a patch on the frame, that (I think) will do me a year or two, where I can enjoy it.

Thanks,
Steve