how to wire the alternator for a 77 mustang
Ever thought about just putting a one wire alternator in there and doing away with the external voltage regulator. Its a nice upgrade.
the big black wire is you charging wire should go in the battery side of the starter relay the STA post in the alternator goes to terminal S on the voltage regulator the FLD post goes to terminal F on the voltage regulator and there might be a ground wire next to the FLD post on the voltage regulator wire A+ goes to the battery side of the starter relay and wire I goes to the charging indicator light I'm not sure were the voltage regulator is in a mustang but its a square metal box i think it might be on the radiator support or inner finder
