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General Non-Sense entered into the scene a few years ago as a truck a friend owned and wanted gone. I took it to Durhamtown, tried to sell him for what the owner had in him and got no nibbles. I came home and decided that I could go to work on a Monday which I previously was unable to do after...

Off subject with you but if your unit received 5 tons off a ship in the Marine Corps, ya'll got the best of the best. The trucks may have been old but guess what? I work alongside the people that provide those assets and we think of the young Marine in the field depending on that truck. We...

Both are fine trucks and I still work on the LMTV's. I don't like the LMTV electrical system very much and replacing diesel injectors due to the Army's low lubricity JP-8 gets old as well as HEUI pumps. When you change an injector on a C7 you have to update the ECM with it's "profile" before...

I'm curious about the rpm indicated when it shifts as well. You stated that once it warms up it shifts better. My NHC-250 was getting rather weak on cold acceleration when the injection pump was going bad causing a delay in shifting. It would still start and idle perfectly. Once warmed up it...

The really basic way I can describe the system when the truck is in operable status. The air compressor builds air which is stored in the air tanks. The brake pedal actuates a hydraulic master cylinder which sends hydraulic pressure to the "Air Pack". It boosts hydraulic brake fluid pressure...

Tires are non-directional and may have been installed on the rims by a dedicated tire shop. They build them all the same way as opposed to individual unit maintenance shops who may take a little more pride and install them according to which side of the truck they are going on.

Original Poster, 86m1028, why did you delete most of your posts? Did you figure out the issue? If so we'd love to know what you found was wrong and what the cure was. I'll save you any embarrassment by quoting my father. "I'm not smarter than you, I've just lived longer and seen more...

Welder1 has identified the issue and if I had good search abilities I'd link a post of the thread member Gringletaube posted some good pictures on. Since I'm unable, you basically need to remove the spring spacers from the top of the axle. Unbolt the U bolts that secure the axle to the leaf...

Piggybacking off of what Swamp posted, install the driveshafts to the transfer case. Start truck, build air pressure, release parking brake and shift into gear ready to give some throttle if necessary. The torque convertor shouldn't be locked at all in first gear, it shouldn't lock in until...

Well perhaps it does in limited observation. My current 5 ton has one of these engines and the Cummins NHC-250 started serving the military with the introduction of the XM809 series in the late 1960's. It was a Commercial Off The Shelf drop in that met the requirements. The Military doesn't...

Events like the Aberdeen event (I've never been to it) and the Georgia Rally (I've been to 8) rise and fall. Last year I believe we had 100 or so trucks and quite a crowd. The year before 115, year before that 130. Most of the people who were there in the 2 years I met in the Horse pasture...

Reading through your signature, is this the M923A2 that you converted into a M925A2? Back when the Army still used M936 Wreckers we'd play tricks on new guys and engage the power take off when parking the truck. We'd know if they checked the truck over pretty quickly if we heard a bang and the...

I've read on here that the button on the transfer case shifter can cause this behavior. I'm trying to sort it out in my head as to what it does. Common logic would say that it disengages the torque convertor to allow easier shifting from high to low on the transfer case but I think it does the...

The first tank you are closing off is the wet tank. Each successive tank has a check valve as well which will help you to identify what is leaking. Start by opening the wet tank valve that you closed to build air. Trace the line to the next tank up and repeat your test. If successful, open...

I'm in, Old Glory flying high will propel this 5 ton to Victory!

Can you drive through it and see if it smooth's back out? My truck used to have a bad hop at 46-48 mph (923 on 14's) and I simply drove through it for a while. I finally got tired of it and lowered the air pressure to about 20 psi all around and drove with some noticeable sidewall sag at 15...

Simp is great to hang with! Be prepared to be an expert of backing towed loads within an inch left or right and helping dig deep holes to help with loading! I'm being silly, Wes has picked up stuff from my front yard from time to time. I don't think many have put as much effort into keeping...

Pull the axle cap bolts on both sides of the axle and attempt to turn one side if you don't have the capability to lift the tires off the ground. If it turns, you have open differentials.

Oil leaks are scary until you consider how much oil is in these trucks. Different model entirely but my M923 had a sudden oil leak from the front drive that rides the belts to the fan and sprays oil everywhere under the hood. I worried about smoking the engine until an engineer friend of mine...

This picture is awesome and was taken prior to the trail ride to the Memorial Service. Briggs knew going up from Leesburg that we were paying Respects to a lost friend and was still cheerful. We made it home Safely and I asked Briggs why he seemed so happy and carefree in the picture. He told...