Hi there!!! I have a 64 polara with a 440 in it , it is wired for a single field alternator I want to wire in the newer dual field alternator!!! what do i wire the new field to that comes off my new alternator ?????? does it make a difference which field wire goes where????

thanks Mike


64 dodge

it does not matter which one you plug into.
ground the extra to the case and it will run with the single field vr.

I was told to tie the two wires together and attach to the single field wire by people around here !! unsure what to do !!!!!thanks mike

Do you just want to run the newer 2 field terminal alt with the old mech regulator or do you want to run the 2 field terminal alt with the newer electronic regulator ? Ron

not sure what they are telling you.
I have done this mod on 2 different cars. I know several people on this board have done it.

lets be sure we are clear.
you have the old single field voltage regulator.
there are 2 wires going to your alternator.
1 to the big stud on the back and the other from the vr to the field connection on the alt.

you want to put in a dual field alt but retain the old single field vr.

As stated above, plug in the single field from your vr to either of the field connections on the alt and then ground the other field connection on the alt.

I do not know what 2 wires they are telling you to splice, but it doesn't make any sense.
if you look at the wiring diagram for a dual field alt vr, you will see 1 field shows full 12 volts to the alt. The other is driven from the vr.
I have no idea what it does if both are driven off the alt, if that is what they are telling you to do.

What Andrewh said. Do Not splice any wires together. Plug the green wire coming from the reg "field" terminal to either of the 2 male alt field terminals then ground the other male alt field terminal to the alt case with a short piece of wire and a round eyelet terminal and a 1/4" female terminal