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I'm curious about how an M936A1 wrecker drives on the highway. The -10 TM doesn't appear to indicate that it has a lower top speed than a regular M923, in contrast to my M543A2 wrecker which I think is geared lower than the cargo variants of its family. Is the M936A1 geared the same as the...

Folks, I apologize for the very late notice on this. The 17th annual meeting of the West Cost Military Radio Collector's Group is about to be held at Camp San Luis Obispo NCO Club in San Luis Obispo, CA. It'll be next weekend, on Friday May 4, 2012 and Saturday May 5, 2012. Details can be found...

When I was driving my M923 around on my property last weekend, I spun the rear wheels quite a bit. At one point I flipped on the front axle engagement switch, and things suddenly got better. So, it seems that my front axle isn't automatically engaging the way it's supposed to in low range. The...

Please forgive me, but I feel the need to rant for a moment. I'm installing a keyed battery disconnect switch in my M923, and I think that an ideal place for it is in the left wall of the battery box (which is also the passenger seat). It'll be reachable form the driver's seat, out of easy...

I decided to install an exhaust flapper on my M923 to keep rain and wandering monsters out of the exhaust pipe. I tried a paint can first, and found that it didn't sit on the exhaust pipe nicely because of the big bend at the end of the pipe. So, I got a nice-looking 4" flapper off eBay, painted...

I would like to know the transmission, transfer and differential gear ratios in a stock M923 (M939 series) truck. I haven't managed to find that info in the TMs so far, and I'm not positive that the generic info I found online for MT654 transmissions is correct for whatever is in the M923. I...

One of the mods I'm considering for my M923 is a self-retracting air hose reel for tire inflation and so forth. I've seen a few threads where folks have done that. I'd like to mount the reel inside one of the toolboxes both for security and to keep it cleanish. Unfortunately, both toolboxes are...

I just took my new M923 for its first spin. I got it over a week ago, but I haven't had time to play with it on weekdays, and I did a bunch of little stuff to it first like fixing some air leaks behind the dash, installing the cargo cover kit, adjusting tire pressures, cleaning windows, and so...

I'm contemplating how I'd like to add a knuckleboom crane to my new M923, and I'm thinking about the PTO and engine speed governor aspects at the moment. My first inclination would be to add a PTO hydraulic pump to the PTO mount on the transmission. I think I'd like to use an air-shifted one...

Back in the day, I had a little problem with a family of bees who moved into the recesses of my M543A2's crane bed: http://www.steelsoldiers.com/5-ton-up/13149-help-bees-my-m543a2-wrecker.html I ended up hiring a professional exterminator, who solved the problem with extreme prejudice. Well...

My new M923 has five modification work orders (MWOs) listed on the door frame. I've identified all but one, and have downloaded the details of two of them from LOGSA. The remaining two are up on LOGSA, but are distribution codes b/c, so I can't download them. These are the MWOs listed on my...

I won a nice-looking M923 out of GL in Barstow recently, and got my EUC approval on Tuesday morning. I made arrangements with a local towing company to pick up the truck this morning, but they dropped the ball and never dispatched their driver. I didn't find out until I called the office at...

I need to replace some air lines on my M543A2 wrecker. The hose from the remote clutch control burst last time I used the crane, and I assume that some other lines will need replacement, too. My truck likes to blow rust out the emergency glad hand at the back, and there's a leaky fitting on the...

I like to keep one eye on SS while I'm at work, and I use my iPad over the cell network in order to keep work stuff and personal stuff entirely separate. Our work PCs run corporate spyware, the company monitors every byte on the Internet connection, and I prefer for my personal stuff to not...

I'd like to mount a knuckleboom crane on the M923 that I just won at GL, and the Wajax/Palfinger PK19000 cranes from the LVS trailers that have been surplussed out look like interesting options. Do any of y'all know whee I might find downloadable technical manuals for those cranes so I can learn...

Is there a source for bulk floor mat material of the same type that is used in the HMMWV floor mats? It looks like a dense foam with a textured plastic skin on one side. The skin is green, as all things should be, but I suppose that black skin would be fine if the green stuff is custom made for...

I have an MEP-003A genset with the Acoustic Suppression Kit (ASK). The ASK is an insulated enclosure that wraps around the genset, and quiets it down enough that you can approach to within 10 feet before putting on hearing protection, rather than hunkering down in a bunker a mile away crying...

Ok, silly question time... does an M923 have air-driven wipers like the deuces and older 5-tons I'm familiar with? I've never actually sat in one, and I'm wondering what will be in my M923 after my EUC clears and I pick it up. Yes, I bid on it based on the GL pics and video... you know what they...

I'm trying to wake up my M35A2C after it has sat for a few years, and I'm having a problem that I haven't dealt with before on the many deuces I've owned. I'm unable to get the engine to start, despite checking the things that have worked for me before. My search-fu has not enlightened me so...

Inspired by the various knuckleboom deuces and similar trucks that SS members have created, I have idly dreamt for many years about replacing my tired M543A2 wrecker with a knuckleboom crane mounted on a 900-series truck. That just sounds like a wonderful combination to me. My wrecker has been a...