I’ve been searching but haven’t got a clear answer on weather a 2001 2 wire truck alternator needs a resistor added in line. I have the car wired for a sbc alternator but I’m switching to the truck ls style.

If a resistor is needed I’ll just run the wires and pin the Ecm like the schematic shows, but if I can use the wires already ran for the old alternator that’d be great.

 

I believe I wired this right. It is charging.

My alternator is the 2 wire. Wires are grey and brown. I added a 470 ohm .5w resistor on the brown wire with key-on 12v. It’s working as should I’m just hoping I’m not going to fry it like this.

 

Sounds like an AD244 alternator. Do a search on AD244... theres a thread on how to wire it into a 3rd gen.

 

From what I’m seeing it’s actually an ad230. It’s a 105 amp alternator. I didn’t know that until I just searched the numbers you mentioned though. That should help.

Using ad230 in my search I found a YouTube video and the guy wired it just like I did.