AutoZone offers several 10SI-style Delco Remy alternators, often sold under the Duralast brand or as performance upgrades, featuring 63 to over 100-amp outputs. Popular options include the Duralast DL7127M (63 amp)
OK, I have story. I've been trying to use a DL7127M that came with my 12 volt conversion kit from 23 years ago. Next, I picked up a new one from Autozone and both were showing over charging. Autozone tested my original alternator and it passed. Not sure why both are over charging. So, I decided to try a one wire alternator setup and ordered one from Summit yesterday. Then, from just being frustrated, I started searching the internet again looking for 1-wire vs 3-wire alternators. I saw a guy on YouTube and he was talking about the wiring where the DA plug goes. He was connecting from one blade to the BAT terminal on the back of the alternator and I thought, "My red wire doesn't go like that". Then he mentioned if not wired correctly, it could cause over charging. I checked my DA plug and the two wires are reversed! I de-pinned and swapped them. Now everything looks to be working like it should. The little dash light I added comes ON when you turn the key and goes OFF when the engine starts.
So frustrating that someone probably assembled my DA Plug wire at 4:59pm on a Friday! Now I'll do another "Break-in" cycle and watch the charging to see if stays in range.
Thanks again to everyone that hung in there to help resolve the problem. I guess I'll keep learning about this old truck of mine.
