I have said many times: yes, the newer mini starters are objectively better in just about every way, but they take away that vintage-Mopar sound. I have a (passably) modern car for daily driving; when I'm out in an old Mopar, I want it to sound like an old Mopar.
Rebuild them myself? No, I haven't had the tools for many years. I don't recall what size that screw is, but a quick trip to the hardware store with the starter in hand should let you figure it out. Whatever its thread size, its length is short for obvious reasons. Doesn't matter, though; a correct-for-'70 starter will not have that hole. I think I do have such a starter; send me a PM.
