1967 A-body Big Block 383 4bbl 727 Automatic Transmission

On 68 and up transmissions the number date position which would be where 3761357 is on this trans and would be part of the 10,000 day calendar date system but this does not apply to 67 and earlier transmissions. The number 3761357 is and was only an internal Chrysler production number and not a date code to my knowledge. As you can see it does have the 67 number on it as referenced in the ad and can be seen in other ways it is a 67. I hope this info helps and if anyone has any further knowledge on the 67 trans dates please let me know
Thanks Don