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I was advised by the resident 10 ton guru to try to maintain engine speed as close to 2700 rpm as possible as that was the diesel engine's "sweet spot." On flat ground they would run, I had a M123/747 combination going 45 mph into Ft. Dix, NJ with a M60 tank on top on Rt 88 which is essentially...

10 tons are maintenance intensive especially if you are planning to haul anything heavy with them. They harbor many lubrication points that are unique to the ten ton and the ten ton only. Brake anchor pins, airbrake applicator valve linkage, live kingpin oil cellars, the winch, shift levers and...

Reference post 71 on lubrication: Hope you have a lube order so you don't forget anything. In addition to the aforementioned fitting on the bell crank for the air brake linkage there are grease points on the anchor pins for the brakes and many on the winch andn the winch driveshaft. If you can...

Don't forget the most important grease point on the truck: the one on the bell crank in the brake linkage between the left frame rail and the left side of the transmission. The foot pedal is remote from the applicator valve mounted on the frame. The linkage contains the aforementioned bell crank...

On stock tires: 42mph loaded or empty. Ran one into Ft. Dix in 1994 with a M60 tank on top of the trailer on level ground eventually hit 42 mph. That's all.

If the right tank doesn't leak, it can be made into a handy hydraulic reservoir if you need to work either a dump trailer or RGN trailer with your tractor.

As to front driveshafts, there was a maintenance bulletin requiring them to be removed unless the vehicle was being used exclusively off road. I believe this is because with the driveshaft in you would damage the bevel gear sets in the steering knuckles. Ours were stored on the pioneer rack...

Reference post 39: If you are only using the left fuel tank I hope someone moved the return line over from the right tank. As built a M 123 feeds from the left tank and returns to the right tank which prevents one from closing the valve on the crossover line so you would only have to fill the...

B 440 probably appeared in that article but other B Company trucks, especially B345 also made it into print. "B Company" was Co B, 50th Main Support Bn, 42nd Division, NJARNG. The unit at that time was located in Dover, NJ. The subject of the article was a project called "The Reef-X" which...

Yes I am sure the truck in question was not a 5 ton. The truck had been surplused out and fallen into the possession of a lumber mill near Lebanon, PA. They had 2ea of these which and been made into knuckle boom trucks to handle logs in the mill yard. One still had the 903 Cummins in it. I...

Reference post 18: When first fielded 10 tons used a LeRoi V-8 gasoline engines. Later editions have a 903 cubic inch Cummins V-8 diesel. I have seen examples after being surplused out that had Mack ENDT 675 engines swapped in. They all had a Mack built TRD72X crash box transmission and a...

This is how you hauled your tanks and such back in the day.