Help with Alternator Install

Mattax said
Just ground one of the field terminals as shown here

"B" is already grounded as indicated by the terminal being cut off.

Mattax said
alternator.
In some cases its worth fixing

Or at least sell it to someone here as a round back core. Might even be able to make money on the deal!

Lastly measure the diameter of the pulley if it measures 2.75ish vs 2.5ish you will see a fluctuating ammeter but it will still work ok.