Pete, Sorry, I did see that alternator on Summit but it was a higher amp output unit than I wanted to run. I should have mentioned that. I'm a little concerned about the original wiring on this car. But that was indeed the only dual field roundback that I have been able to find for sale. Thanks.

It looks like I can make this alternator work. Moparts member Jim (aka 70RT) is sending me a brush assembly to install making this unit a dual feed.