Join Date: Nov 2000
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Re: What one wire alternator can I put in my CJ??
Do you want some assistance in rewiring your alternator? It's not too hard to do. There are essentially 3 wires. One heavy gauge to the battery or battery terminal of the starter solenoid. One wire from terminal A through a diode, 100 ohm resistor or idiot light to a source of key on power (ignition). Third wire goes from terminal B to the battery lug on the alternator, or if you wish to do as TeamRush suggested, run it from B to the key on power. That's the heavy red/white strip wire coming out of the harness plug on the firewall. This will regulate voltage at the harness instead of at the battery.