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Old 04-17-2026, 12:05 AM
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devauxmidwest devauxmidwest is offline
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Join Date: Dec 2014
Location: Colorado Springs, CO
Posts: 176
Default Can I maintain ammeter gauge function with 12si 3 wire alternator upgrade?

Finally getting back to my 67 Grand Prix. Getting engine rebuilt, and will change the factory alternator with a 12Si 3 wire alternator. The car has factory gauges that include an operating ammeter gauge.

I understand that the B body cars have a shunt that is part of the ammeter circuit. Can I maintain my ammeter gauge function with the 12Si 3 wire upgrade?

Thanks