one wire Alternator and voltage regulator question

Need WAAAAAY more info.

There are many types of alternators

1. Single field wire round back
2. Double field wire round back
3. Single field wire square back(actually a double field wire with one of the field wires grounded)
4. Double field wire square back

There are also other alternators which are refered to a single wire (GM) that only have the one wire to the battery, no field wires.

So from what you have stated I have no idea what alternator you have and have no idea what alternator you should have AND have no idea what regulator you have.

1. What year is your car
2. What modle is your car
3. What engine is in your car
4. What modifications have been done to the electrical system
5. Post photos of the current alternator
6. Post photos of your old alternator
7. Post photos of your regulator
8. Measure the voltage at the battery with the engine off
9. Measure voltage at the battery with the engine on