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I would like to reach out to other members who have replaced the OEM Cab Heater / Defroster with an aftermarket 24v unit. I have seen a few online, but don't want to reinvent the 5 ton wheel. Thanks very much!

I searched the forum and believe my Protective Control Box might be toast , but need to lean on the experts again. I have had directional, abs light, alternator and now a temp gauge issue on my 85 M931. I replaced and repaired all the above and went to a show yesterday and this morning, my...

I am 5 months over due on my state inspection, health, 10 feet of snow, bad heater core (replaced) , two weeks ago, alternator fried(replaced) and yesterday I finally drove it over to the truck shop for my state inspection and the driver's rear directional was out. All lights work except for...

I finally replaced my heater core and took Zeus out for a short ride yesterday and saw my voltage gauge was not in green, as usual. Came back and using my slave plug, I found 23 volts on my meter while the engine was running. Raised the hood and the generator / alternator was very hot to the...

Hello all, I finally installed my new heater core in my M931. Ended up taking out the entire heater box to remove and replace it. Now that warmer weather is here (finally) I plan to shut the coolant flow to the heater core using the 2 shut-off valves. Is it OK to leave the coolant in the core...

My buddy who bought my M35A1 discovered a fuel leak at his injection pump. Reading some of the threads it appears to be coming from the large nut (primer / plunger??), so we attempted to loosen it and the head broke off. We were able to remove it but need a replacement. Does anyone have a...

Now that 95% of my mechanical issues are solved, I am starting bodywork and paint and painted the cab Desert Tan yesterday. This morning I wanted to remove the mirrors to paint them flat black and snap the rusted top nut that holds the vertical arm. Can't find a schematic on the mirror...

I have done a search and know this has been done before, but can't find specifics. I just purchased a NOCO Genius 12v/24v Smart Battery Charger / Maintainer and would like to charge / maintain (24v) my four Hawkers (installed in 2010 by Uncle Sam) via the slave port on the passenger side. I...

Folks I would like your opinions please as I valued them over the years...... I was installing a new take out light switch yesterday, ya my lights are finally working and a curious on looker stop by to check out my truck. His son is a diesel mechanic and I was telling him about my nagging fuel...

I don't see the dialog box any long for attaching pictures in PM's or Emails? Has this option been eliminated? I use Chrome as a browser, but also tried in Firefox and still nothing???? I go to ADVANCED and the dialog box for Manage Attachments doesn't come up any longer.

We are finishing up a few small details on the M931 Bob Project and I did a search to see if I could find an answer to a few questions, but was unsuccessful. My truck originally came with G177's and I swapped for buddy's Michelin 14x20 Super Singles. I have a brand new SS spare, but it won't...

I need a 27000 Lift King Military Forklift transported to NH. Forklift was won on GL, but is now off-site at a storage yard. Doesn't run, but will make arrangements to load and unload. Zip codes 23702 going to 03268. Need moved ASAP. Thanks!

Folks, I've done an exhausted search on the Protective Control Box and could not find if any has (or had one) rebuilt for the 900 series 5 tons??? Phil and I have a "toasted" one and opened it up to find out today that either a diode or resister (or both) somehow fried itself. It doesn't look...

The birth of Mr. Zeus - Bob Build Thread - Phil's Work is outstanding! Well guys over the next couple weeks, Phil and I will be planning the bob on my M931. I am going to swap my G177's for his Michelin 14 Super Singles. My only option at the moment, unless I can find a cargo bed and cut it...

Zeus I (aka M931) Recovery Successful Thanks to Phil!!! Updated on 3/2/13... Thanks to my buddy Phil and his crew of two, he made the 500+ mile trip back to NH from New Castle (his son) driving my M931 and he was trailering his (non-running) M931A1. He arrived at New Castle at around 10:00am...

Guys, After solving my step issue, looking at fellow S/S trucks for sale and looking at my big boy toy budget, I decided to throw a GL bid on a M931 (which ironically came from from the MA N/G) this week at New Castle, DE and won it. I just received the invoice so the clock is now ticking. I...

Guys, Yesterday I went to take a look at a local M931A1 for sale, here is NH and much to what I expected it was the typical condition of a New England based truck, lots of rust and neglect. Because they are rare in New England, this was the first 5 ton tractor I have been in and driven. The...

Boy, I am getting an education (thanks to this forum) on the 5 ton truck line. I understand there is a M932A1 5 ton tractor. What is the difference between the M932A1 and the M931A1? Or am I just all wet behind the ears??? Thanks!

Ok guys, here is my dilemma, I am on the search for an M900 series tractor to bob. I have found three nice rigs, M931A1's (owned by fellow SS members, btw, thank you for responding to my numerous calls, pm's and emails) 2 are in PA and one is in MD. That's 450 to 550 miles from the homestead...

I am trying to do some homework before making my next purchase which is, hopefully going to be an M931A1 for a bob project. Does this model M-Series tractor have the Allison MT 654 transmission? Also, does it have a sprag front-end. Are there any issues that owners have had with these trucks...