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Do the M939 CTIS controllers work without modification in the LMTV A0's? I know the A1 can talk to it, but the A0 can't. Has anyone used one?

Wow, I need one of those!

Back when I got mine off eBay, they could barely give them away. I think I paid like $40/ea, and shipping was free or cheap. I haven't seen them in a while, though.

Are there more than one style of the CTIS wheel valve housings? I know there are a few versions of the hoses, but does the valve body change too? Is there only one set of internal replacement parts (e.g. diaphram, seat, spring, etc.)?

And you're giving us a glimpse of "typical mechanic underthinking". The irony is that because you don't want to think about it very hard, you're not even imagining that there is any good reason engineers would make these seal drivers, and you assume it must just be that they were bored and made...

The seal drivers are nice, and help the job go smoother, with less chance of messing up the seals. Most of the strong opinions against things being over-engineered come from not understanding why it was done. The 3D printed drivers work pretty well. They take too long to print to be worth...

Count me in, please

4.8 x 19mm sounds like an odd size. Is that a conversion for an imperial size? That works out to 0.189" x 0.748". A #10 screw is 0.190" diameter, so it seems like it's probably #10 x 3/4"L.

1. The breaker box does not mount anywhere. You only put it on when using the crane, and then just roll it up and store it with the rest of the cables when not in use. 2. I use the ratcheting pivot handle, and switched it to the long handle. I feel it's pretty important, as it allows you to...

I've pulled the front timing cover/case off. The big issue, that I recall, is that you can't remove it without pulling a big gear off of one of the cam shafts (or some other rotating shaft sticking out the front of the engine). The gear is like 6" in diameter, would not budge with a...

I like the idea. I don't think there are any dimensionally accurate drawings of the bed available. I don't know what tolerance the bed is constructed to either, but it's probably not too tight (e.g. one bed to the next may vary 1/8" between the post holes?). Trying to mate to all four post...

I've been looking for a driver's side antenna mount for a while too, for the same reason. I haven't gotten to installing the light kit yet, so I haven't pushed it.

https://www.steelsoldiers.com/threads/3d-printed-inclinometer-mount.186516/

More info about the air compressor bracket, with references to previous threads and stuff, in the document here in my signature. Lots of other distilled info too.

You can buy them, straight from Rieker if you want. The part number is here in my spreadsheet in my signature. I have a thread around here where I made a 3D printed mount for mine, that puts it right in the middle of the instrument panel (straight for the driver to see, instead of in the...

Most likely your driveshafts are not balanced. Read the document here in my signature, for a ton of information about it, including links to old posts. I had the same thing happen to me, and had to replace the engine.

It's not that the system is inefficient, it's just inefficient for how you want to use it. If you were a military, ordering enough of these to support their 100,000 FMTVs, it works as designed. If these lug nuts aren't used on any (or many) other commercial vehicles, the commercial supply...

Don't take it personally. You're getting a very unique truck, but with it comes unique problems.

The kneeling hydraulic cylinders could be repurposed/replaced with cylinders to do something else useful, such as extend an awning, deploy stairs, or lift a fuel can rack.

Preventative maintenance on it, or replacing it, would be of similar difficulty, and allow you to keep it.