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Build it and they will come...

I found a difference between the 5-ton and the HEMTT wheels (on my wheels at least) that may explain the difference in torque values: the 5-ton wheels are using deformed-thread lock nuts, where as the HEMTT wheels are using just plain flange nuts without any locking feature.

This is true. A CH-47 or CH-53 could also extract the sucken truck.

This is pages 2-113 & 2-114 from printed TM-9-2320-260-20 July 1972 in the electrical troubleshooting section.

There is also a #27 spider harness which is the power to the electric gauges and is keyed hot by the battery switch.

Sweet! Any chance you measured voltage for bright vs dim? I don't plan on cutting anything. I'm hoping to unplug 569 from the pre-heater switch, plug it into a wye, then add a short section of wire from the wye back to the switch and then another section of wire to a USB port.

I've been wanting to add a 12V charging port for cell phones on my M813 also and I've been entertaining the idea of splicing in to the "glow plug" circuit #569 with a wye connector just before the switch since it already carries 12V to the dash. Not sure if it's a sound idea but it would be...

This is just a guess, but I'm thinking that circuit #40 might output 2 different voltages based on whether the light switch is on Panel Bright vs Panel Dim. Not sure what your converter would do if it were receiving 12 volts, say, instead of 24 V. A volt meter in that free socket would confirm...

Yes, thanks for the follow-up. There are too many issues in threads left open-ended without the solution being posted.

Not official DOD stuff but lots of info here: https://www.secretprojects.co.uk/threads/us-army-high-mobility-multipurpose-wheeled-vehicle-hmmwv.8712/

Maybe the search starts with the first humvee contract number? Maybe there are requirements listed that the contract fulfills? I don't think the info is easy to find but it's out there somewhere.

This could help you. Nht88-1.29 This is the NHTSA 's "interpretation" where they tell AM General that their products were indeed meant to spend the majority of their time (60%) on public roads after AM General tried to back peddle on their design intent when the M151 started getting too much...

Well, I think I'll celebrate by putting some new shoes on the old truck...

Thank you guys! Wow, getting voted MV of the Year is a big honor for my truck and I ! I have put a ton of work into my truck in the last 3 years so this award feels really good and is indeed a highlight for the truck. There were a lot of great rigs in the running that made it a very stiff...

These guys are using some sort of special tool during Hurricane Katrina relief efforts.

That would be the 14.00s on the bridge truck. I believe the M819 came with 12.00s?

If the A3 is newer than Oct. '92 i wonder if they found that lower torque number to be inadequate and increased it for the A3?...

It's loud for sure and I love it; 1000-1600 rpm sounds like a jet spooling up for take off when the turbo whine is louder than the exhaust note. The jakes sound super sexy though. They let out a sharp, staccato hammering at high rims and a mellow burble under 1700 or so. A long drive for me...

The truck in the second video is mine and for the sake of compiling numbers it's running a #17 button and the most I've seen is 14+ psi & 900° F. I don't know what rail pressures it's running at but the new button has caused new fuel leaks around the manual shutoff valve...

OK, I found a torque value and a torque sequence in the Oct. 1992 TM. In the section header it lists both the A1 (5/8" stud) and the A2 (3/4" stud) tire and wheel so I guess it's the value for both stud sizes