ok i need some help guys i put a newer motor in a 46 dodge pickup that has a serpentine belt type alt. i have ben trying to get it to charge with the fire wall type volt reg as you know the volt reg for this type alt is in the control box brain of the truck i grounded one feald and it charges but keeps climing as you rev it i also tryed reg thru the ground side nothing there eather man im stumped need some help please

sounds like your voltage reg might be bad, or sensing voltage.
I have the 5.9 magnum in my 65 coronet. running the 2000 durango alt.
I am using the solid state single phase voltage reg.
I grouded one wire coming out of the plug on the alt, and ran the other to the field line of the voltage reg and it charges just fine.

Which voltage reg are you using? what alt?

what does you volt reg. look like and were can i get one i mite have the rong kind it has two wire studs in a triangle type hookup i ran one of the feald to ground like you did and the outher feald to one of the pins on reg. the outher pin i ran to egn.switch still over charges

that is a dual field voltage reg.
you wired it like a single field.
here this will help for the dual field vs single

here is what i got for a alt con it even be hooked up like the old ones??

should be fine.
guessing the brown raised area are the 2 field poles.

You should have a wire from the bulkhead that goes to the voltage reg. that should be a 12 volt sensing line.
splice it into 2 lines. one end goes to the voltage reg, the other goes to one of the fields on the alt.

Then run the line out of the voltage reg to the other field on the alt.
should work.

WELL THATS WHAT I THOUT I MUST HAVE A BAD ALT OR VOLT,,REG I REALY DO APPRICATE YOUR HELP HOPE I CAN HELP YOU SOMEDAY

based on your statements you have it wired wrong.
none of the fields should be grounded.

one goes to one pin on the vr.
the other goes to the other pin and the wire from the bulkhead, or 12 volt switched on power.

After you have it wired up, following the previous post(s), here's something else you might want to look at as well. On my car, one of the fields (I have a dual field alternator, square back style) phillips screws that holds the field in place in the alternator, there was an extremely small crack/cut into the porcelin female fitting the screw screws into. That small crack caused the same issue with me of my voltmeter jumping up when giving it gas. I thought it was a bad voltage reg. Nope. After pulling the alternator for the $%$#$ time, I took a much closer look at the fields. Sure enough, there was a small crack. I replaced the alternator and never had any other issues - my voltage meter kept increasing past 14, then past 16, even up to 19 as I was giving it gas. Not sure if that will help, but you might want to take a look there as well. Good luck!