Auto tranny number stamping?
The numbers on the trans are a form of the sequence number. if the trans is original to the car they might match the hidden numbers stamped in the trunk lip and core support.
I can't find any photos to back up my statement above can someone else confirm or deny my statement.
After 1/ 1969 (iirc) the vin is stamped
The only way to tie the trans to the body to the fender tag to the VIN is with a build sheet or an IBM card that being a 67 you can request from stellantis historical.