AC model U ? picture

Bruce Reimer · Feb 16, 2010

We have a model "U" AC that has no serial #. Understand it is supposed to be stamped on the rear axle housing just off center. It has the flat head engine and my friend has got it restored but would like to know what year it is.
Hey, we're not color-blind. haha
Bruce

Jeff Z. · Feb 16, 2010

Yes the serial number should be near the pto.
I don't think anyone would want to scrape all that nice paint off to look for it.

Butch(OH) · Feb 16, 2010

1929-32 had the flathead Continental motors like yours. The radiator top labeled "Allis-Chalmers" instead of "United" means it is not very early production. The serial number should be located above and to the left of the PTO (OR cover) on the flat area. There was a somewhat common rear end problem in the U that cause the housing to be split and thus many were replaced and often times not serial numbered.

AC model U ? picture

Bruce Reimer

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Jeff Z.

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Butch(OH)

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