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The light switch seemed to be missing when the truck first arrived. The hole on the dash for the switch was empty and the plug/connector was just hanging there. After rummaging through the mess left inside the cab I came across this light switch (picture). I assume it's aftermarket. It's push...

Ironically, there's an upside to purchasing an old gem that needs more work than anticipated. It's kind of a blessing in disguise because it forces us to learn more about the vehicle than we might have if everything already worked perfectly. I haven't mastered the fuel system by any means but I...

Yes, I found that linkage and "messed" with it a little bit. The ram does push the linkage arm. There is a gap between the ram and the lever. The gap was 1/2 inch or so wide.

There are controls near the rear of the wrecker bed for the crane drive controls. I got under the truck and found that there is a valve with an air line under the controls. I followed the air line all the way forward to the injector pump. Since the control levers are "stiff" I disconnected the...

That's great advice that I fully intend to follow. Unfortunately, I am unable to find any TMs for the M816 in the TM section. Perhaps I'm not looking in the right place.

We had several inches of snow last weekend. I took the truck out for a short drive. I rounded a corner and the back end of the truck went into a power-slide. The rear wheels were spinning but the front wheels were not. As for the possibility of a governor to disengage - it looks as if I'll be...

New to forum so if I placed this in the wrong spot please let me know. I'm most likely going to sound like an idiot because I know almost nothing about the truck I bought but I love it and want/need to learn. Short introduction - I bought a 1972 M816 wrecker sight unseen and had it delivered. It...