Hi Scot,
Sorry to hear about your continuing alternator problems. The negative
battery cable on my '71 has an extra connection in the middle. The ends of
the cable connect the negative battery terminal to a bolt on the
engine/tranny (as I recall). The middle connection is for a bolt that
connects to the body just under the battery box.
When I purchased my well (ab)used car it had an aftermarket battery cable
and didn't ground the body.
The car had so many other problems at that time that I can't say how much
it helped to get the proper body ground.
BTW, there's also a small ground wire that connects to the fill plug on the
steering rack. That one often breaks with age or gets neglected when
servicing the rack.
HTH,
Cregg Cowan
CC63192L
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