Ndill91

I bought a 1959 b61 thats partially converted to 12v neg ground. The truck is all original for the most part besides the dump body. I’d like to keep as much original equipment in the truck as possible. I had the generator rebuilt because the armature was ceased and the guy tested the regulator and said it was bad. So my question is, if I get a new regulator will this setup work with 12v neg ground just to charge the batteries or should I do an alternator conversion