1966 Ford Mustang Alternator Wiring - Wiring Forums Jul 27, 2017Trying to find details regarding 1966 Ford Mustang Alternator Wiring? you are right here. You might be a service technician who wishes to search for references or solve existing troubles. Or you are a trainee, or maybe even you that just wish to know concerning 1966 Ford Mustang Alternator Wiring. 1966 Mustang Alternator Wiring –5/5(1)1966 Mustang Alternator WiringNov 28, 20171966 Mustang Wiring DiagramsNov 28, 20171966 Ford Thunderbird Alternator Wiring DiagramJul 27, 20171965 Ford Mustang Alternator Wiring Diagram - Wiring Forums See more results Ford Mustang Forum - 1 wire alternator in 1966 Mustang I have installed a 347 CI (302 bored and stroked) in my 1966 Mustang. I bought a Summit Chrome 1 wire alternator that the representative recommended that would work with my March serpentine belt system. The wiring directions go like this. Connect the main wire from the alternator harness to the positive lug of the alternator.