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66-96 Ford Broncos - Early & Full Size
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diymirage

single wire alternator

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hey guys, i want to upgrade the alternator on my 87 351 bronco 

 

if i get a single wire alternator, do i just run a 4 gauge wire from the stud to the starter relay and leave all the other wires hanging? 

 

(i am plowing with this truck, and the hydraulics take a lot of juice) 

 

thanks 

 

 

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I used 2 4 gauge wires off the back of the alt. 1 to the starter solenoid and 1 straight to the battery. ITs complete over kill.

x1 4ga wire of the back of a 3g alt to the starter solenoid is plenty. I got my 3g from O'reilly and its the part # used in the 1994 Mustang 5.0. fit great with the normal bracket grinding required.

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Thanks skit, I'll look into that 

(I like the idea of an off the shelf unit) 

 

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forgot to ask, with the 3G alternator, i do not need to hook the existing wires up?

 

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Yes you will need to hook up the existing gray plug in the new 3g.

See the source image

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