Flickering or pulstating Headlights

coalman said

I have a question on this again. I came across an old post on this subject, it stated that pre 1969 charging systems have a ground wire off another FLD terminal on the alternator, is this correct? My shop manual wiring diagram does not show this. Thanks a bunch

Click to expand...

Short answer is you are correct and they are wrong.
There was a '69 or '70 system that may have had a ground wire of sorts.
Its shown in the MTSC booklet as an 'insulated brush alternator'. The 1970 Alternator & Regulator (Session 269) from the Master Technician's Service Conference

Otherwise yes, the ground shown here...

..is the alternator housing.
The brush holder is cast into the housing.




Uses these brushes and one insulated horizontal brush holder