Model AA serial numbers

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Jared275
Posts: 306
Joined: May 29th, 2009, 8:37 pm
Body Type: dUMP
Model Year: 1928

Model AA serial numbers

Post by Jared275 » September 27th, 2009, 7:48 pm

Does anyone know if all model aa engines were stamped *AA------------* or if some had a stamping *A------------*. Why I ask is I have a 29 and my block is stamped with a single A.

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REM
Posts: 306
Joined: September 6th, 2006, 4:10 pm
Model Year: 1930
Location: N.W. Mo.

Re: Model AA serial numbers

Post by REM » September 28th, 2009, 5:20 am

There was a period of time when they were just stamped with a single A.
I would have to check to find when but it seems part of '29 was included.
After the 4 speed was introduced it went back to AA.

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Neil Wilson
Posts: 2424
Joined: February 5th, 2003, 9:42 pm
Body Type: 89-A
Model Year: 1930
Location: Boulder, CO
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Re: Model AA serial numbers

Post by Neil Wilson » September 28th, 2009, 7:49 am

An “A” or “AA” prefix was at the beginning of the engine number. The prefix and number is the engine ID. There was a star on each end of the ID. The “AA” prefix identified engines with a stronger clutch spring allowing the engine to be identified on the assembly line for installation into an AA chassis.

Note: for a three month period starting mid February 1928 (with engine ID A-26268) through mid May 1928 (with engine number 136,000 approximately) the AA truck clutch spring was the same as the Model A. During this period the engine ID had the “A” prefix. Refer to the “Service Letters” dated February 23rd and May 15th 1928.

So, all AA's would have originally had an engine ID with an AA prefix except for the three month period in 1928.
Regards, Neil Wilson
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farmerden
Posts: 46
Joined: October 23rd, 2009, 9:26 pm
Body Type: AAC
Model Year: 1928

Re: Model AA serial numbers

Post by farmerden » October 25th, 2009, 6:27 pm

So--- If my serial # is *CAA18658* would the "C" stand for Canada? Details details God is in the details!! Den :D

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Downunder Rob
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Joined: September 22nd, 2004, 7:44 pm
Model Year: 1930
Location: Melbourne, Australia
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Re: Model AA serial numbers

Post by Downunder Rob » October 26th, 2009, 1:13 am

Den
that is correct.
*CA is the canadian prefix.
*CAA is for Canadian trucks

mine is a *CAAQ manufactured later 29 and probably installed atleast 3months later.

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