Thread: Wiring question voltage regs.
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12-03-2007 01:27 PM #1
Is it a one wire alternator or does it have a two wire plug and the one battery wire ? And if it has the plug what year car is it off of ?
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12-03-2007 01:38 PM #2
here is a diagram
alt and the three wires connected and two not connected. The big black tube represents the wires where they are wrapped.
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12-03-2007 02:27 PM #3
Your alternator is the external regulator type . Starting in 1973 GM went to the internal regulator alternators . The best thing to do is pick up a power master one wire alternator with the one wire hook up . Then all you need to do is hook up the red battery wire and unplug the the body mounted regulator . And this should work and charge much better then the factory set up did . Or if you have a good 1973 to 1980 Chevy alternator with the plug I can tell you how to make it work on your 68 chevy wiring . I think its better to go with the one wire alternator . I have seen them at some local auto stores .A 70amp is enough for your car .
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12-03-2007 03:03 PM #4
This is the only one I could find on my computer.......Its gunna take longer than u thought and its gunna cost more too(plan ahead!)
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12-03-2007 03:13 PM #5
Originally Posted by shawnlee28
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12-03-2007 03:10 PM #6
One wire? what is the advantage.
I have read that one wire alts are problematic and should be avoided.
if I get a "oem" alt and new reg. how does it get plug back in? (see attached photo)
also if i go with a 73+ can you explain how that would work. I had a 75 and never had any probs.
Thanks
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