727 identification (stamping numbers)

MoPar~Man

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Just curious what these numbers code for:

430.jpg


J2801542 4121348

427.jpg


260 - 5

Did I miss any others? This should code for a 727 from a Canadian 1967 Dodge Monaco (with poly 318).
 
You can check your number in the following document. It seems to be a 1967 transmission for Dodge with 318cui engine

https://www.mymopar.com/downloads/transguide.pdf
Agreed - this is what I found: '67 B&C-body 318 & '68 C-body 318

The other number is a 7-digit sequence/serial number that they started in '62 and counted up until '68 when they switched to a date coding 8-digit system, of which the first four digit number was a 10,000 day calendar date. Yours is not a date code of any type, simply a sequence/serial number. The casting date is all you can go by for date-coding.
 
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