Alternator

I'm confused by your confusion, 67Dart273. As I follow this, the round-back alternator in his photo is the one that he found is wrong (with your help) and he is going to return it and get the later squareback type. That is better because it puts out more current, and is correct for his car.

plydust340,
Since the factory field wire is apparently broken in the harness (verify w/ a multimeter), you might consider mounting the Vreg beside the alternator on the inner fender. That keeps the new wires short, and the setup simple and understandable. I did that in my 65 Dart, and also used a squareback w/ the later Vreg (triangle connector). Not sure why the factory didn't do that since the firewall is cluttered enough as is.