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Dropsides are aluminum and light. One handed use. Much nicer than the old m939 bed sides.

Once they vent they are done

Forklifting basically ruins the truck. You would have to get new driveshafts, new yokes and pinions on the tcase and the axle plus who knows what else could be damaged. Very easy to crack a t case or trans casing. Once a lmtv is forklifted under the driveshafts its a parts truck.

Stop charging them if they are that hot they will vent and be ruined

Is air leaking out the bottom of the air dryer?

The bed sides and racks shift and clunk around when driving. The bed itself can shift a bit also. The m939 frame has alot more flex than one would think from just looking at it.

Lmtv headlights are 12 volt. If you got the mil surplus trucklites many are 24 volt only.

Regular over the counter wiper blades work. I use the Bosch icon style ones.

It has been my experience with multiple trucks that when the pump seal is failing the unit will blow hydraulic fluid out the vent in clearly visible puffs. Good pump units will not have any visible puffing when standing at the hyd control. The pumps seem to have a high failure rate in general.

The m939a2 system is first gen and requires the proper maintenance to be reliable. Improperly sealed o rings or old leaky wheel valves cause flat tires. Not the system itself. Moisture gets into the wheels because the air dryers arent properly serviced and its all down hill from there. The...

The troubleshooting tm states which pins to check if there is a problem with the tach that should be a good starting reference.

Drop the pan change the filter, change the spin on filter and see how it all looks. If it was me I would see what the Allison dealer has to say. Might be something simple that can be repaired from the pan area.

That heater may just use the 3 legs and a ground. I have one of those it makes a good load bank. It will draw a bit more than listed and the mil generators don't always trip on over current right away. That kind of load can damage a 10kw gen at full draw for too long.

They are all the same.

They are nice seats. I sliced the base plate off of the original seat, bolted the plate back in. Put the air ride seat in, adjusted it till it was just right, marked the base, took it all out and welded the base plate to the seat base and bolted it right in. Air can be tapped under the truck I...

M939 rops high cab trucks. Air ride is nice in these trucks they have a harsh suspension when unloaded.

I like the air ride seat.

Reverse pressure switch goes in the transmission. There is a bolt you remove. There are threads on this.

Grab at the light or 12v trailer harness and run a wire up with your cam wire.

You can reach your hand right up to the stem