Voltage regulator upgrade? Keep frying voltage regulators with swap

FYI - unplugging the voltage regulator didn't help. I had to cut the 12v to the alternator for it to quit charging.

Also, I just checked resistance between the VR and body, alternator, engine, etc = 0 ohm resistance
I checked the trunk battery to frame connection point, 0 ohm.
And then from that point to the opposite frame rail = 0 ohm.