Well, found my issue... Put my car up on ramps when I got home (in the dark), after driving all the way home. That is what I love about diesels... I could drive my battery down to 9V (granted it is likely ruined, I have it charging), no alternator, and make a 150 mile drive home. Try doing that with a gasser...
Anyway, wanted to pull my voltage regulator to get a feel for the brushes and what was going on there. As soon as I unscrewed the screws and pulled it out, one brush fell out. It felt as if there wasnt even a wire in the insulation for the connecting wire for the brush...
The one was also worn funny compared to the other.
So I need to get a new regulator and then hopefully all is well. I am going to try the Altrom / Beru brand from Napa (their prices on regulators are horrid) instead of bosch because the beru is a 14.2V regulator versus the bosch at 14. Given my experience with these older cars and what the bosch alternators put out (my 91 BMW included) a slightly higher regulator helps keep the battery better charged.