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That setup looks good, clean, open, and simple. I like the retention of the cold start pieces and I'm glad I didn't see any plumber's tape anywhere.

I see, I see. I've read a few opinions on what max pressure a small cam can handle and they very between 200-230 psi. What pressure would be your max and have you come across any official number from Cummins?

How does a needle valve on the gauge affect the pressure that the pump puts out?

That first picture truck looks a bit like a KM-500. What are your eventual plans for your truck? Full resto?

Was there only one?

I saw The Untouchable 5-ton at the Auburn, Washington 2024 Veteran's Day parade this year so I'm assuming it's not the one listed from New Jersey (can't confirm, however). I don't have any details other than these pics:

Looks like enough gold to warrant free entry into the lowrider show!

With the heater drawing in warm air from the cab on continuous recirc, the heater should get nice & toasty. Brazing the leak shut on the heater would be a more affordable option than replacing with the new $230 units...just an idea...

Here's a pic with the tab flipped over to let the lever engage. Looks like it starts out flat and then gets a twist.

I twisted mine off from over tightening so I cut off the male threads and drilled & tapped for 1/8 NPT female threads to use a nipple. If you can drill straight and tap straighter it could be a way to fix your misalignment (don't tap too deep).

I got the truck all tucked in for a cozy winter hibernation in a heated shop. It's the first time ever that it has been indoors and I'm afraid it may get spoiled 😁. While it’s hanging out here, i think I'll finally do the battery box mods like @Brutacus did a while back.

Your M923 is part of the M939 series so start looking here: https://www.steelsoldiers.com/threads/m939-series-tms.218395/ The M920 is part of the M916 series of trucks (completely different) The NHC-250 is 855 cid (14 liter) and is a pretty good engine.

Does the engine bar over by hand? And the battery is connected for 24 volts?

If you haven't done it yet, it may be time to do the dual fuel mod with new fuel line routing.

Gonna do an autopsy and report back?

Just in case...Army Surplus Warehouse up in Idaho Falls has chains for 16.00R20s

I'm running 60 in front, 35 in rear and 40 in the middle for now, but I still experiment with different rear settings. Truck is empty. I like the chalk/paint idea - will have to try that out.

What pressures are you running front & rear?

I finally applied the unit numbers to the rear bumperettes:

It's very strange how they can fall out so easily and then not want to go back in without some heavy persuasion