Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

gm 3 wire to a 2 wire alternator

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Old Apr 1, 2011 | 12:10 PM
  #1  
IROCZdude's Avatar
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From: Indianapolis, Indiana
Car: 88' Z
Engine: 350 .60 over
Transmission: W/C T5
Axle/Gears: 3.23
gm 3 wire to a 2 wire alternator

i currently swapped a 76 350 for my ol 305, my old alternator connector was a 3 wire and my new alternator is a 2 wire, any wiring advice?
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Old Apr 1, 2011 | 04:09 PM
  #2  
deadbird's Avatar
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: gm 3 wire to a 2 wire alternator

It is somewhat unusual to revert to a 'crapper' alternator (IMO) but, don't mind me...

(attached image courtesy http://www.novaresource.org/alternator.htm)
Attached Thumbnails gm 3 wire to a 2 wire alternator-chargcircuit.gif  
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Old Apr 1, 2011 | 06:52 PM
  #3  
IROCZdude's Avatar
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Joined: Jun 2010
Posts: 105
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From: Indianapolis, Indiana
Car: 88' Z
Engine: 350 .60 over
Transmission: W/C T5
Axle/Gears: 3.23
Re: gm 3 wire to a 2 wire alternator

the only reason im switching is because i dont have any other belt kit besides the stock one in 76
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Old Apr 1, 2011 | 08:12 PM
  #4  
deadbird's Avatar
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Joined: Sep 2000
Posts: 6,775
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: gm 3 wire to a 2 wire alternator

The pulleys will interchange between the two alternators if you still have the original alt.
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Old Apr 2, 2011 | 10:38 PM
  #5  
IROCZdude's Avatar
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Joined: Jun 2010
Posts: 105
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From: Indianapolis, Indiana
Car: 88' Z
Engine: 350 .60 over
Transmission: W/C T5
Axle/Gears: 3.23
Re: gm 3 wire to a 2 wire alternator

the old style gm 2 wire has 180 degree mounting points and thats what i need
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