Dual field alternator in single field vehicle

dodgedartgt said
Hi all,

The front bearing in my alternator is starting to squeal. The '67 'cuda is wired for single field alternator. I can only find a dual field replacement from the common sources. I have to have the car driving before Sunday.

What modification do I need to make to use a dual field alternator?

The replacement I bought has two terminals labeled FLD. One looks like a normal spade connector, but the other does not look the same.

What do I do?

Thnx, Mike in FL

If the alternator you bought doesn't have two identical spade connectors, the terminal without the spade is probably already grounded. Check the resistance between the spade terminal and alternator case. If the resistance is 10 to 20 ohms, it's already grounded. If there is no resistance, just take the screw out of the terminal with no spade lug, remove the insulating washers and put the screw back in, then connect your regulator to the spade terminal.