This is a genuine GM Alternator for the bigger bodied cars like the Kingswood, Impala, Catalina & Bonneville, Grand Prix, Monte Carlo from 69 thru 72. It is 61 Amp.
The Mounting and adjustment points oppose each other. .... so if you check the AC DELCO makings on your (given that yours is original still) you will see the points are 9 am & 3pm.
Supplied outright . .. and delivered within Australia Free when paid on line. $26 for standard Delivery to NZ.