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Looks good! USMC AN/MRC radio Jeep would have many many extra holes everywhere including a big hole in the dash for a radio related voltmeter or hourmeter.

Says Cat model 120 right on the cover???

OK here you go: Your manual is TM5-3805-249-12 (find online) Your machine NSN is 3805-00-466-0084 Your thermostat is P/N VD10333 / NSN 6685-00-893-8332, which crosses to Cat P/N 3M6008 and Mil Standard MS35770-3

Construction equipment did not necessarily get a "M" number. From the machine's main data plate, what is the National Stock Number (NSN) or Federal Stock Number (FSN)? Googling this number might help you.

Huh? The gusset is bowed out at least 1/4"!!! What I have done is beat on the plate, that shatters the rust, then blow it out with compressed air, repeat over and over, then when the cavity is empty, beat the plate back down and drown the cavity with zinc rich primer, and seal all around with...

Maybe. What happens to people over and over with these trucks is that driveshaft vibrations transmit up to the engine accessories and shake them loose, cracking the front timing cover and breaking the oil line behind the air compressor resulting in all oil loss in seconds.

Google: 3930-01-053-4824 and download the manuals from “liberatedmanuals”.

Yes. Do a search within the FMTV forum for “hinge test” or “hinging test”.

Don’t even leave until you have checked the driveshafts for spline wear. And if ok, check the tightness of the compressor, water pump and alternator bolts every fuel stop. Also check the fan hub for rubber deterioration.

Can you post a picture of the data plate? There are different versions of that RT forklift.

My advice to you is find a small weld shop that is very convenient to you and let him take a look at it. Fixing these paper thin frames is a simple matter of cutting out rust holes and making patch pieces and welding them in with a wire feed welder.

I would verify the calipers are free to slide on the mounts and I would disassemble the piston and verify nothing is binding. But I would also wait to see if anyone else chimes in on your thread.

My best guess after thinking about this for quite a while is the smoking gun is the calipers. Either the piston is binding randomly or the caliper is binding such that it can't slide and only one pad is allowed to apply.

Is the skidding tire on the front or rear axle. What are the caliper pistons made of. Heat could cause them to seize in the bores. Are the calipers free to slide easily.

Scorpion looks pretty decent.

Is the pump actually pumping? It makes a “cathunka cathunka” sound.

So glad I was wrong and we have learned something new about turbocharged trucks and rain.

Need more info on what you plan to do. Most of the time the GP folks will push your truck onto your conveyance. When my "won't start" LMTV from Bragg got here on the drop deck, two hot batteries and she fired right up. Yours might be out of fuel or plenty of other issues.

Post # 2: https://www.steelsoldiers.com/threads/need-help-troubleshooting-an-issue-with-my-wtecii.196869/#post-2297130

Agree with above. HOWEVER, before you blow up a new or repaired controller, make sure you ohm out all the circuits. Follow the Allison manual on how to do this.