My engine wiring harness burned up a couple wires yesterday!

I got some more information on the alternator today. I dropped the starter and alternator off to be cleaned / regreased / rebuilt / repaired, and the old guy who ran the place gave me some details. He claimed the alternator was a later "thin stator" unit from the late 70s or early 80s, likely installed in a K car. The dedicated ground stud was needed because those cars used rubber alternator mounts. Thinking back, I remember those, and yes it is likely true. He said it might be good for up to 70 amps, that needs to be tested.