Early M37 wiring diagram?

[powerwagontim]

Hi Guys,
Has anyone got an early wiring diagram for an M37? My wiring harness was pretty well gone when I got the truck, and I noticed that there is a receptacle on the side of the headlight switch that would appear to be for turn signals. The receptacle was capped off with a screw on cap. I do not believe the truck was originally set up with turn signals. I have the common M37 wiring diagram that shows the turn signal relay box. This appears to have 2 receptacles, the one with terminals A, E, B,C,F,D seems to be the terminals I have in my light switch. My truck was converted to 12 volt, and I am leaving it that way, so getting a Relay Box wont help me, unless anyone knows of a 12 volt one.
Thanks in advance for any help.
Tim

 

[Bill W]

Early m-37's (1951-54) did not come with turn signals.If you have a 51-52 year M-37 its possible you still have the old 2 plug light switch,If this is so then it has nothing to do with turn signals, it was just a different type wiring system the mil used and did away with for the single plug setup thats still used on todays mil vehicles. I added turn signals to my 37 which involved adding a wire to K terminal in the harness plug that goes into the (single plug) light switch ( and running a wire to each front park light ) and then hooking up the flasher and relay box into the brake wiring

 

[mhassett]

E-mail me at mhassett@bellsouth.net and i will e-mail a copy back to you.
mhassett

 

[powerwagontim]

Hi Bill,
Thanks for that clarification. Yes, the light switch has the 2 plugs, but the harness was chewed off at the main plug, and the smaller one was capped off with a screw on cap that was stamped "BENDIX" I compared the pin markings to the pin markings on the relay box and they seemed to match, thus my guess that the second plug was turn signal related.

Mhassett, I sent you an email, Thanks!
Tim

 

[powerwagontim]

Mhassett,
Did you get my email?
Thanks,
Tim

 

[m109guy]

Here is the wiring for an M37.

Right click on the small picture below and select "open in new window" or "open in new tab" to see it full sized.

 

[powerwagontim]

Thanks M109Guy,
I have that diagram, I am trying to locate a diagram from an early (1952) M37. I think it is mostly the same, but a few minor differences, mostly the turn signals.
Thanks again,
Tim