[PDF] How To Wire Alternator - Vintage Auto Garage and connect the red wire to the output side of the alternator 10/32 stud, take the long wire and connect to the + side of the coil. If you are using a coil with external ballast resistor connect this wire to the battery side or key switch side of How To Wire Alternator 12-VOLT NEGATIVE GROUND 3 WIRE INSTRUCTIONS wwwageautogarage SOLVED: Chevy G20 1985 wiring (charging problem) - Fixya Jul 08, 2009Chevy G20 1985 wiring: - How is the wiring from the Alternator to: Battery, ignition switch, discharge Bulb etc.? - A 3-pin connector is equipped for connection of the alternator external equipment. Where are these 3 wires terminated? - Is the wire from BAT+ going directly to the battery positive terminal? Alternator-Upgrade Wiring Tips for - Chevy Hardcore The original 1960’s GM alternator employs an external voltage regulator. This alternator (10-DN), uses a flat, two-prong connection at the back of the alternator. The other main connection on the alternator is the output terminal that charges the battery. The least expensive upgrade from the 10-DN would be to step up to a 10-SI or 12-SI. Related searches for 1985 chevy alternator wiring chevy alternator wiring diagram1990 chevy alternator wiring diagramchevy 350 alternator wiring2004 chevy alternator wiring diagramchevy alternator wiring conversion350 chevy alternator wiring diagram3 wire chevy alternator wiringchevy single wire alternator wiring