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tmodelman · 01-06-2018, 09:57 PM

Ford mfg. Model T crank, later version with the more rectangular throws. The 'AA' is the improved steel formula. These appeared about 1924. Later, in 1927 the material was changed to 'EE' marked, and these cranks appear to have the better steel formula for longer lasting. The other markings are some type of forging references.

01-06-2018, 09:57 PM	#2
tmodelman Senior Member Join Date: May 2010 Posts: 580	Re: crank shaft markings Ford mfg. Model T crank, later version with the more rectangular throws. The 'AA' is the improved steel formula. These appeared about 1924. Later, in 1927 the material was changed to 'EE' marked, and these cranks appear to have the better steel formula for longer lasting. The other markings are some type of forging references.