Installing a one-wire GM alternator makes the process of adding an alternator to a vehicle originally equipped with a generator very simple. One-wire alternators are also used by people in the performance car field to help make the car lighter as there are fewer wires to add weight to the vehicle.
Disconnect the negative battery cable at the battery.
Mount the alternator to the engine. These alternators were not used in cars so you may need to fabricate a mounting bracket. You might also find a bracket that will work at a local junkyard. If you must make your own brackets flat-steel stock, 1/4-inch thick and about 1 1/2 inches wide will work well. Bend the ends 90 degrees to form a cradle for the alternator and drill a hole in both tabs to slide a bolt through, which will hold the base of the alternator.