Anyone know how to hook up a one wire alternator to a 65 mustang? - Ford Mustang Forums : Mustang Forum
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post #1 of 7 Old 02-15-2008, 04:23 PM Thread Starter
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Anyone know how to hook up a one wire alternator to a 65 mustang?

Im looking to go with a one wire alternator setup. has anyone done this? can you explain to me what i need to do as far as wiring? also pictures would be a huge help. I need more than the 65amps of charge my stock alternator is giving

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post #2 of 7 Old 02-15-2008, 05:25 PM
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Go to they have a bunch of alternator diagrams there. I used one to hook up a 2G on my coupe.

72 Mustang Coupe, 203,000 miles, 331 Scat steel crank & pistons, 9.0 compression, TFS twisted wedge aluminum heads, 19 lb injectors, BBK 70mm throtle body & EGR, 73mm mass air, Crane 1.6 roller rockers, FMS E cam, FMS roller lifters, AOD & original 3.00 gears in 8" differential with Auburn locker.
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post #3 of 7 Old 02-15-2008, 06:08 PM
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install the alt and run a wire from the back of the alt to the positive side of the battery.if you want a gage then run said wire through the gage and then to the positive on the battery

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post #4 of 7 Old 02-15-2008, 06:10 PM
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One wire, connect the wire to the + side of the solenoid.
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post #5 of 7 Old 02-16-2008, 01:52 PM
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Here is a link to a great write up on installing a 1-wire alternator and removing all of the excess wiring.


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post #6 of 7 Old 02-17-2008, 11:10 PM
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You will need to install a voltmeter. The original meter is an ammeter with an external shunt (part of the wiring). If you route the alternator output lead through this meter it will be toast.

All the vendors for classic Mustang parts have the books with wiring diagrams in them.


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post #7 of 7 Old 03-15-2008, 08:06 PM
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great info

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