Has any one ran a Alternator with a internal voltage regulator?

74 Dartsport said

............So this problem all started last year when i refinished my dash then put it back tho together. not sure why maybe a wire got screwed up in the processes .............. do i still run the output wire on my volt gauge? also parts store said alt was good im running out of ideas please help
thankyou nate baluski

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You could have easily "bumped" some marginal wiring under there and lost connections. The most probable is the bulkhead connector, and the ammeter connections

You keep mentioning voltmeter, did you add one, or what? The original gauge is an ammeter

The Mad article link I posted should answer a lot of questions, it addresses the most common problems