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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Alternator Alternative.

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Old Apr 10, 2009 | 09:28 PM
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From: Diboll, Tx.
Alternator Alternative.

Ok I just thought that sounded catchy. My alternator went out on my '84 300 6 truck. I had to basically destroy the old alternator to get it off, because the bolt that goes throught it fused together with the aluminum in the casing. I have an high output alternator left over from an 89 Mustang build. I know i will have to change the pullies, but it has the regulater on the back. If I get the plug for this alternator, can I use it?
 
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Old Apr 10, 2009 | 09:53 PM
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If you get it mounted you can use it. You will need to retrieve the green/red wire going to your old regulator and wire it to the new alternator. That's the wire from the keyswitch that triggers the alternator to come online. It will be either on the "s" terminal or the "i" terminal of the old regulator.
 
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Old Apr 10, 2009 | 09:59 PM
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I compared the two, and the mounting tabs appear to be alike.
 
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Old Apr 10, 2009 | 10:13 PM
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Please post a pic of the back of the the alternator, or at least the overhead view of the regulator plug... need to know if this is a 3g high output or not.
 
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Old Apr 10, 2009 | 10:37 PM
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Everytime i try to post pics it doesnt work. It it a stock alternator for an '89 Mustang GT w/ all electric options, a/c, ect.
 
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Old Apr 11, 2009 | 11:10 AM
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Originally Posted by 1 F150dude
Ok I just thought that sounded catchy. My alternator went out on my '84 300 6 truck. I had to basically destroy the old alternator to get it off, because the bolt that goes throught it fused together with the aluminum in the casing. I have an high output alternator left over from an 89 Mustang build. I know i will have to change the pullies, but it has the regulater on the back. If I get the plug for this alternator, can I use it?
Ford Fuel Injection 3G Install Tech


FullSizeBronco.com - 78 - 96 Ford Bronco offroad club, forums, tech, installs

cant remember the differences between the 300 and the 302 and up, but lots of info at both those sites
 
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Old Apr 11, 2009 | 08:21 PM
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Hey that was a cool link. I have the 2g, but i might swap it for a 3g. I can get the plug off an old parts truck at work.
 
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Old Apr 12, 2009 | 12:56 AM
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Originally Posted by 1 F150dude
Hey that was a cool link. I have the 2g, but i might swap it for a 3g. I can get the plug off an old parts truck at work.
i swapped mine for a 3g and it was very simple ,and wiring wasnt hard to do
 
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Old Apr 12, 2009 | 01:46 AM
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I found a alternater upgrade kit for hooking up a 3G on a externally regulated '74-'85 Ford.
 
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