Round back alternator
The ground brush went here.
Regulation worked like this.
Yours has been modified for use with both brushes insulated from ground.
1970-72 Roundbacks and all squarebacks had insulated brushes because the regulator controls power for the field by connecting and disconnecting the ground.
See more alternator guts here: Alternator repair, a little show and tell.
The later revised squarebacks don't mount quite as neatly as the first gen squarebacks. Regular ones fit pretty well.
My experience, and Chrysler's own practice, is to take some extra pre-cautions when using the "60 amp" and higher alternators. This is true whichever way you choose regulate.
Be careful not to allow too much high rate charging (you can monitor this with your ammeter).
More about that:
Charging Battery with Alternator - Warning
That particular alternator case was a pre-70.
The ground brush went here.
Regulation worked like this.
Yours has been modified for use with both brushes insulated from ground.
1970-72 Roundbacks and all squarebacks had insulated brushes because the regulator controls power for the field by connecting and disconnecting the ground.
See more alternator guts here: Alternator repair, a little show and tell.
The later revised squarebacks don't mount quite as neatly as the first gen squarebacks. Regular ones fit pretty well.
My experience, and Chrysler's own practice, is to take some extra pre-cautions when using the "60 amp" and higher alternators. This is true whichever way you choose regulate.
Be careful not to allow too much high rate charging (you can monitor this with your ammeter).
More about that:
Charging Battery with Alternator - Warning