Trans numbers

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63SplitWindow

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Just wondering what the stamped numbers on the side of the case mean. It's a 727 in my 73 Dart Sport.
The number sequence is: P4130705 6152 2176.
Thanks,
Bill
 
Transmission P4130705. It's out of 1979 with a 360, non lock up converter
 
6152 is the day it was manufactured in the Chrysler 10,000 day calendar, Thursday, June 1, 1978
An the 2176 is the sequence number of that unit for that day.
 
Here it is

datecode.jpg
 
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