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I wonder how many M135/M34 beds are around! If one isn't going for historical accuracy, I'd go for an M35 bed since it's completely flat across the floor - no wheel wells to worry about :) I take it that they're more common too.

Most deuces will have a single-circuit system. Some built in the 80s came from the factory with dual-circuit brakes. Maybe some in the military were retrofitted as evidenced by the document I referred to. All M44A3 trucks came with dual-circuit brakes from the factory. The bottom line is...

I read this post and was wondering how this works for dual-circuit systems: Based on this diagram from page 1-4 of SMI 9-2320-209-14&P, both air packs run the trailer service brake connection, so the trailer will still get some kind of air signal if a brake circuit fails. I wonder, though...

A friend of mine has a HMMWV he built with reproduction smoke grenade launchers on it, and he had a control box from which he gave me overall measurements. I think I have this pretty close now: Overall dimensions including mounting plate are 4.25" L x 2" W x 3.25" H. The bump-out for the...

What are you using for modeling? I've been using primarily Autodesk Fusion 360 as I am most familiar with Autodesk products due to my career.

@oddshot thanks for bringing this thread back to life - it was a good read! But now I'm wondering: Are there any patterns published for the tops? How about seat covers?

I had no idea that the deuces had different styles of parking brake lever. Was that a difference between the gassers and the ones built as multifuels?

Welcome to the hobby! Unfortunately, I have nothing to contribute to your fuel issues but wish you best of luck. Fortunately there are plenty of multifuel owners here to help! However, once you get those resolved, I suggest flipping the hubs on the rear axles of the truck if you plan on...

I think it's a combination of valve and seal failures. If any gear oil gets into the valves through leaking axle seals, the valves get gummed-up and won't work right. Air seals at the bearings can fail - the M44A3 has four seals per hub whereas I believe the M939A2 has... two? But the 939A2...

That's valid too. There are many parts that are less expensive than a 3D print or a custom-machined part and more durable in construction. Whenever I print an oddball thing for myself, I do some research to determine whether I can just buy it for less than it costs to print. Where I think the...

Yep, I run a Creality Ender 5 Plus which is an FDM 3D printer - a bigger version of Creality's Ender 5. Lower layer height does also increase strength. Unfortunately the nature of a 3D print's creation still renders them 50%-70% weaker than injection molded parts made from the same material...

Last I checked, replacement controllers for the truck are pretty expensive. Also, I'm unsure as to how much of the controller's functions are in the box itself rather than the power manifold under the truck - for example, is the Off button turning off the box, power manifold, or both?. I'd...

I don't think I'll ever go back to PLA as a regular printing material. ABS is physically tougher and has excellent temperature resistance. It also costs less per kg than PLA and can be smoothed out with acetone. It does, however, have a steeper learning curve in that it will warp without...

I'd start with the CTIS troubleshooting instructions in the TMs if you haven't already. TM 9-2320-386-24-1-1 has the unit-level troubleshooting instructions for the CTIS.

I have a functional parking brake and still use wheel chocks just in case. The fire departments all around where I live chock their trucks on-scene. The TM says to chock wheels when parked too.

Interesting, a Core XY unit! I really like the cartesian-style printers only because the bed only moves up and down. I started with a little bedslinger printer and will never go back! I recently read something on Tom's Hardware about a new FDM printer that uses magnetic linear motors (like...

The area I'm most concerned with are the screw slots on the mounting plate. Though the nice thing about slots and the ABS plastic that I plan to print this with is that it can be cut or sanded to size. I prefer to be as accurate as possible, but that's only possible when I have the actual part...

I completed a blank version of this box which can be seen here. Holes can be drilled into the blank to fit whichever switches, buttons, cannon plugs, etc. are desired. This was a request from a member here. This is a control box for a vehicle smoke grenade launcher. My references are only...

Anything can be printed with a big enough printer :p It's even possible to 3D print entire structures with pumped concrete! Reproductions like that involve some reverse-engineering. 3D scanners might help too, but only having read about them, consumer-grade ones like what I could afford...

Maybe one of the small trees you ran over twisted a ground connection under the truck and solved your problem? 🤷‍♂️ Interesting!