3g alternator coversion
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Logistics Pro
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From: PA
3g alternator coversion
i have a 1987 302 bronco i want to put in a 3g alternator but how do i change my wires so i only have 1 and if i get a 3g alternator do i need to change the wires to thicker one's please help need advice soon as possible 
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Joined: Sep 2002
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From: San Antonio, Texas
Search for the 3G conversion, I and otherts have posted very extensize instructions on how too modify the wiring. If you dont't understand the details, then I'll be happy too go over them with you.
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Joined: Sep 2002
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From: San Antonio, Texas
Alright.
2G alt.
2 plugs, each has 3 wires.
1 plug goes too the rectifier, it has 2 output wires and a sence wire. The output wires is what puts out the power too the battery. Cut this plug completly off, all 3 wires I mean.
2nd plug is a smaller one, it plugs into your regulater, you leave this one alone.
3G alt.
Now take the 2 big wires that go too the solinoid and crimp them both too an eyelet, they will bolt too the output stud on your 3G, The 1 small wire is your sence, crimp on a 1/4" splade terminal, that plugs into the sence on the 3G.
Hope this helps, I'll be back tomorro evening, I'm hitting the hay now.
2G alt.
2 plugs, each has 3 wires.
1 plug goes too the rectifier, it has 2 output wires and a sence wire. The output wires is what puts out the power too the battery. Cut this plug completly off, all 3 wires I mean.
2nd plug is a smaller one, it plugs into your regulater, you leave this one alone.
3G alt.
Now take the 2 big wires that go too the solinoid and crimp them both too an eyelet, they will bolt too the output stud on your 3G, The 1 small wire is your sence, crimp on a 1/4" splade terminal, that plugs into the sence on the 3G.
Hope this helps, I'll be back tomorro evening, I'm hitting the hay now.
Posting Guru
Joined: Sep 2002
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From: San Antonio, Texas
What, my description not good enough for you?!!! 
Fine, I'll get my own fullsize.com, with blackjack and hookers, you know what, forget the hookers, ahh forget the whole thing.
I like blackjack
Fine, I'll get my own fullsize.com, with blackjack and hookers, you know what, forget the hookers, ahh forget the whole thing.
I like blackjack
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Logistics Pro
Joined: Nov 2003
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From: PA
hey broncoroadkill can you talk me through this part
3G alt.
Now take the 2 big wires that go too the solinoid and crimp them both too an eyelet, they will bolt too the output stud on your 3G, The 1 small wire is your sence, crimp on a 1/4" splade terminal, that plugs into the sence on the 3G.
3G alt.
Now take the 2 big wires that go too the solinoid and crimp them both too an eyelet, they will bolt too the output stud on your 3G, The 1 small wire is your sence, crimp on a 1/4" splade terminal, that plugs into the sence on the 3G.
Fleet Mechanic
Joined: Aug 2001
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From: Round Rock, TX
Take the two big wires and crimp them together onto an eyelet that's the same size as the stud on the 3G. Then take the small wire, crimp on a 1/4" spade terminal, and plug that into the sense terminal on the 3G.
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From: Bend,OR
going with a 160amp alt wouldnt you need to upgrade the wires to a smaller gauge? i believe the stock wires are only good up to 95amps. might concider going to say an 8 gauge wire vs the 16 thats stock.
late
late
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Logistics Pro
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From: PA
yea i have heard of that question alot i been thinking about that and in another post someone said that stock wires can handle up to 200amps' can anybody giv a for sure answer its a 1987 302 bronco
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From: San Antonio, Texas
the wires are not 16 ga. they are 10ga. and yes they should be fine. It's also refered too as a bigger guage, it's just a lower #.
16ga. is the wire that you find on alarm sytems, and they can't handle anything more than around 6v.
16ga. is the wire that you find on alarm sytems, and they can't handle anything more than around 6v.
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