727 identification #

The tranny number is 2892089,the next four digits are part of the 10,000 day calander,the next four are the priduction sequence for the plant.The tranny fits these cars:
Cuda 69 8cyl 340
Cuda early 70 8cyl 340 4 bbl
Challenger early 70 8cyl 4bbl
Dart 69 early 70 8cyl 340
Valiant 69 early 70 8 cyl 340

The first four digit number is most likely 2937 and not 2637 as this is in 67.
2937 is a monday august 12 1969
9183 is the production sequence of the plant for trannies,your was the 9183rd built there.
See if you have a PP or a PK before the part number,mrmopartech