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The Goodrich date codes agree with mine. The difference between Goodrich and Goodyear is shown in the first image here and the way "Goodyear" is marked on the tire in the second.

Okay, if MA2X 8AB067 is the date code on the grooved tires, then they are not Goodyears, but made by a Chinese company according to this table.

Thanks for posting. Regarding the Goodrich tire, the large numbers are not a date code...

The date codes will explain it.

The three Goodyear tires on my 757 have the following datecodes: MCM1 62C050, MCM1 62C070 and MCM1 62C080. The tires were made at the Danville, Virginia plant, where mostly aircraft tires are manufactured, according to internet searches. The tires have more anti-ozonant agents added and seem...

I'm very curious about the date codes on your Goodyear tires. After the m656 series trucks were retired after some 15 years in service with the Pershing 1A in Germany in the late 1980's, the tires were most likely not manufactured/needed any longer. This is from one of my Goodyears: The 4-digit...

This is a recap, with original grooving and siping. It was done at a facility in Germany with REOR as an identification mark on the side of the tire.

Hmm...these tires are exceedingly rare, they were only used on one series of trucks in production, the m656/xm757/xm791. I have personally only recovered 5 (five) during the 12 years that I have owned my xm757, none of them Goodyear, which never even got their own FSN #. These images show the...

Wonder if the grooving wasn't done after the tire was worn to extend the life... not so easily done on a new tire. Never done it, so I could be wrong, any comments?

Don't know, the part number on the m656/xm757 truck axle (front) is FM210RDAX5, 6.40 ratio...not what is shown here in the first pictures in this thread.

Hey Rusty, the wheels appear to be mounted on standard m656/xm757 axles, which feature 100% air operated brakes (see post #36 in this thread). Typical illustration of one axle:

Very difficult to find...here are a couple of images.

More images of the xm757 axles. The front axle is FM210 RDAX5 Rear axle; M210 RDAX2 Axle ratio: 6.40, no lockers The xm778: FC240 RDAX1, ratio 6.72, lockers (according to dash controls) The two air lines on the hub of the xm757: service brakes and pressurization

Compared notes with Andrew and the tires are indeed the same as on the m656 series (xm757). While on the subject of rare vehicles, the tires were also tested on the Lockheed Twister:

Yeah, and they are pressurized for fording plus no brake fluid...all air operated and designed for the life of the vehicle.

Here is an inside view of the drum brake (they can be serviced with the wheel in place, btw).

No, the 5-ton xm757 is a very different creature... The tires look the same, but the xm757 ones are low profile and should really be marked 16/70-20 for a 70% aspect ratio. The brakes on the 757 are 100% air, I'll get a few pictures in a minute...