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My 1984 M936 has dead batteries every time I go to start it. These are NAPA military-style (the square ones) batteries less than a year old. I know I have a trickle drain somewhere in the truck, but damn if I can find it. I'd like to put a battery kill switch on it. Anyone have any pictures...

I see the old chemical alarm mounting plate in my 1994 M1070. Wires 1746 and 1747 go to it. Do either of these wires get 24 V from the switch? Would it be possible to simply wire up a dome light in the same place on the chem alarm switch?

I just did my motor swap on my 1984 M936 with a replacement (used) NHC250, and but for a few small issues it seems to be fixed. I did have a bird build a nest in the muffler during the downtime, so startup was "interesting" and now I need a new muffler. Anyways, after the swap my "Engine...

My 1984 M936 has a terrible rattle at highway speed- but only when the engine is at governor and I go down a slight downhill. At normal cruise it's fine, but when I go to a slight downhill--only enough to put the engine/driveline in a neutral load-- it will rattle like a bunch of bolts in a...

I have a Fermont 804B that I'm raising from the dead. The engine starts and runs, and I've replaced the missing gauges. I can't get it to generate electricity, I suspect because the resistor to the "frequency" is missing. From my research, I understand that I have to replace the voltage...

I need to replace both my driver's seat bottom (suspension seat), and the passenger bench seat bottom and back rest. That would only leave the driver's seat backrest as old, and I would just swap all of them out. Has anyone done a recover? I can buy covers from Midwest, but only some are in...

I got my M936 slightly stuck this weekend. There was a big tree to the rear, but I couldn't winch to it because ALL the wheels lock with the crane in gear. Has anyone figured out a way to bypass the wheel brakes with the crane in gear?

Hey guys I'm out in the field and need to add hydraulic fluid to my 1984 m936 medium duty Wrecker. I've looked at the lubricating order and it seems to want me to use a hundred gallons of engine oil (OE/HDO). Does anyone have a civilian counterpart or hydraulic type that will work well in this...

I bought a new front bumper and right fender for my damaged ones. it'll fit on most any trailer or in a pickup bed. Anyone headed west they could pick it up and drop off? Time isn't terribly critical.

As many of you know, I had a sleeve slip on my 1984 M936 Wrecker with a NHC 250. Honestly the motor ran perfectly until then. I paid a guy to do an in-frame to replace that sleeve. He had it purring like a kitten. It again ran perfectly. Then I drove it ten miles and slipped two more...

I'm looking for the Engine Governor Control Module for my 2010 Fermont 804-B with the Yanmar Turbo Diesel, NSN: 2910-01-371-4356. It is also known as a Woodward Controls, part no 8270-1003. I can't find it anywhere, and my generator is useless without it. Anyone have a lead on a cross-fit...

I have a Deitz 7-40 rotating warning beacon on my M936 wrecker. First, I had to rewire almost the whole bed. Now I have the work lights working with LED's installed in each, and I have 24 volts to the warning light plug. Both light systems even turn on and off with the dash switches! So, me...

Does anyone have a picture of this installed?

My 804-B (2010 w/ ~600 hours on the clock) is new to me. I'm not a generator guy. I have drained and replaced all the fluids and filters I could find, including fresh fuel. Went to start it and only got a "click". I thought it was the starter solenoid, which is what was clicking without...

Does anyone have any experience with the new push-button headlight switches? My headlight switch is out and I need to replace it. Trying to decide if I want to do the upgrade, or stick with factory.

I got my wrecker with none of the BII, and have been trying to put it back to mostly correct. What's this vertical post in the center of the picture? It's between the rear hydraulic winch and controls. Looks like some BII mounts there somehow, but what? Seems pretty stout, and doesn't appear...

Man I was excited. Finally, got my truck all finished. The mechanic said come get it. She was purring like a kitten. Sounded great. Ran it up to operating temp, checked the coolant and oil. All seemed well. Made it a mile. Now the motor sounds really, really bad. Towed it back to...

Working on putting this M936 together after a sleeve came apart. The parts house says they can only find three ring pistons to go back in. Four ring pistons came out. The guy says there will be no difference and the three ring piston will work just fine (if not better) than the other five...

I have an MEP-804B (??) Fermont 15Kw generator with the yanmar turbo diesel. I changed all the fluids and filters, bought two new batteries and a couple of missing gauges. Got everything ready, hit the starter and all I get is a "click" from the left driver's side firewall. It looks like a...

I have an M936, the seat is badly faded (to NATO blue), and torn. I've got a good upholstery guy local that says he can recover the seats, but I wanted to make sure I use original military cloth (or close to it). Anyone got a source for the seat fabric?