Heavy Duty Alternator

Well, that Nippondenso alternator could have been seized before it ever made it to the junk yard. All alternators fail eventually. I have been happy with the 85 vintage 65 amp unit but I do admit that the headlights do dim slightly at idle. I never considered it a problem and it was a huge improvement over the stock unit. If it was actually discharging at idle I would be concerned. I believe the big difference is the addition of the positive and negative rectifiers that contain the diodes.

I will be doing the same basic wiring changes that you did to yours along with rewiring the whole car. The car is now 40 years old so it is time....

P.S. Nice Duster.