Alternator ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Piece of Work · 10-01-2010, 08:39 PM

Can a 1 wire alternator be converted to a 3 wire? If so, how?

magwakeenercew2jh · 10-01-2010, 10:39 PM

I don't mean to hijack. But I want to go the exact opposite direction. The truck WAS running a 1-wire and I'm switching to a serpentine set up that has a great alt on it. But it's 3-wire.

What should each of us do?

swamp rat · 10-01-2010, 11:56 PM

Don't know if a 1 wire can be converted to a 3 wire but it would probably require the internals to be swapped out, however not sure the housing would have the port holes for the #1 and #2 wires so would be lots easyer to just buy a new alternator.

But you can definantly install a 3 wire with a little knowledge of the electrical system, heres a couple threads in the subject, if ya search alternator conversion, or 3 wire, alternator swap, ect.. ect. you can find many more threads on the subject..

it helps to know what year truck (if you have a charging indicator guage or the alt light in the dash) and the model alt you plan to install..

http://67-72chevytrucks.com/vboard/s...light=alt+swap

http://67-72chevytrucks.com/vboard/s...d.php?t=417872

http://67-72chevytrucks.com/vboard/s...d.php?t=415738

raycow · 10-02-2010, 12:01 PM

On the SI type, I believe you can do it by replacing the regulator. You have an SI if the plug terminals are marked 1 and 2.

Ray

10-01-2010, 11:56 PM	#3
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: Alternator ? Don't know if a 1 wire can be converted to a 3 wire but it would probably require the internals to be swapped out, however not sure the housing would have the port holes for the #1 and #2 wires so would be lots easyer to just buy a new alternator. But you can definantly install a 3 wire with a little knowledge of the electrical system, heres a couple threads in the subject, if ya search alternator conversion, or 3 wire, alternator swap, ect.. ect. you can find many more threads on the subject.. it helps to know what year truck (if you have a charging indicator guage or the alt light in the dash) and the model alt you plan to install.. http://67-72chevytrucks.com/vboard/s...light=alt+swap http://67-72chevytrucks.com/vboard/s...d.php?t=417872 http://67-72chevytrucks.com/vboard/s...d.php?t=415738 __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

10-02-2010, 12:01 PM	#4
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: Alternator ? On the SI type, I believe you can do it by replacing the regulator. You have an SI if the plug terminals are marked 1 and 2. Ray

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10-01-2010, 08:39 PM	#1
Piece of Work Cultural Infidel Join Date: Jan 2007 Location: Clearwater, FL Posts: 668	Alternator ? Can a 1 wire alternator be converted to a 3 wire? If so, how? __________________ posted via La-Z-Boy -Mark 1972 C-10 Fleetside 350/TH350 PS PB A/C Cab Sadly....Sold 1968 Short Fleet 350/TH400 PS PB Delivered by Fine69 Also sadly Sold! It may be that your whole purpose in life is simply to serve as a warning to others. A man is not complete until he is married -- then he is finished.

10-01-2010, 10:39 PM	#2
magwakeenercew2jh RAT1968 '68 Cab/'71 Parts Join Date: Feb 2002 Location: Coarsegold, CA Posts: 2,375	Re: Alternator ? I don't mean to hijack. But I want to go the exact opposite direction. The truck WAS running a 1-wire and I'm switching to a serpentine set up that has a great alt on it. But it's 3-wire. What should each of us do? __________________ M17 Coarsegold, CA RAT's shiny now. But always a rat. Last edited by magwakeenercew2jh; 10-01-2010 at 10:40 PM. Reason: I cain't spel



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