Reply to "72-PANTERA"

PANTERA1731 (Guest)

I've done this alternator swap, and what you need to do is remove the resistor that is soldered across the back of your tach. Just get under the dash with a pair of dikes and cut it off. The new alternator actually uses the blue/black wire coming off the tach for the "sense" circuit and the old resistor prevents a proper reading. The bad part is that by doing this you lose your "idiot" light on the tach. Let me know if you need any more info.

5/9/0211:02 AM

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