I answered your question just a few posts up:
DO NOT USE THE C10 WIRING it is too old and small to handle the amperage! Sounds like you have a handle on that part. You may use the idiot light wire (because you do need an idiot light to make this alternator charge). Simply find the wire that is connected to your idiot light in the dash and follow this post and you'll be charging in no time!
Quote:
Originally Posted by Pzary3233
You will not use any of the wiring from the original C10 truck except for the GEN light which will be needed to put a slight resistance on the wire.
Assuming that you have a truck alternator this is what you need to do - Copied from what I posted on the first page:
One wire goes straight to 12 volt (Pin C), the other MUST have resistance, ie gen light or resistor (Pin B)..
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