Reviving this thread from last year……
My truck is a 1950 Chevy half ton with 235. Converting to 12 V.
Bartamos recommended the Speedway #91064017 harness. I just called Speedway and they say it’s a quality harness suitable for my current and possible future needs, just as Bartamos stated. There are cheaper, less complicated harnesses (Classic Parts brand $150) but I’m willing to spend more to get more. Unless there is a newer, better harness someone knows about, or another good harness on sale somewhere, I’m going to buy the Speedway harness by weeks end.