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Old 08-12-2007, 06:57 PM   #21
Zerk
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Default Re: GM 3 wire alternator wiring diagram

I used a pretty stout turnbuckle for an alternator mount once. It worked great, had to grind the eyes flat on the mounting faces, and used a jam nut on the righthand thread side.
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Old 01-06-2011, 06:08 PM   #22
slimone2
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Default Re: GM 3 wire alternator wiring diagram

Hi Guys, I have a 78 Chevy pickup ,just put in a 97 5.7 vortec, and had a think its a 100 amp alt off a 88 buick century, 3 wire if you only count the wires in the plug on it plus a 10ga.red wire on the back. Now I used the red 12ga wire out of the plugto go to the back connector and the red 10ga wire that was there to start with. The 16ga brown wire in the middle of the plug connected up to the brown wire that was to the original alt plug (the one that was in the truck to start with) Now the last wire in the plug I just taped off did nothing with it. started truck and checked charge with meter an shows charging 14.2 an with every thing on shows 13.6, Maybe I did it right ? Never have been good at the electric on these things ,Can make them run an go fast tho. Thanks for any advice Slimone2
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