Search results

schematics are around online. However, I for one have never seen one that is correct in all aspects. The only people with lengths and that kind of information are the people who build repop harnesses (I would think). Is there enough of the old harness(es) to get measurement off of? Then write...

Pin J is one of the two from the light switch that goes to the turn signal control. There is no wire on this pin on trucks not fitted or retro-fitted with turn signals. Pin J is hot when the light switch is in "service brake" or "service drive" (headlights) positions - This is what powers the...

The one with the light switch is called both the front harness or cab harness, its the most complex of the lot. The twelve pin connectors are a mil/aero standard. You can find them on eBay. A new one comes less wires. You solder the wire on, slide the compression grommet all the way on and...

I rewired my M37 stem to stern. I made every one of the 12 harnesses from scratch. I got the correct wire (new and pliable), all new douglas connectors, the correct no stick wrapping tape. A machinist friend built a little punch and punched me out a couple hundred aluminum tags. Then I started...