Hi i have had this trany in the back of my garage for years and i was woundering if someone could decode it for me .
on the right side of the case raised letters 3925660 below that is the patent numbers and general motors just above the general moters looks like (1)-10
on the flat area near the tail shaft on the main case stamped in P9S12A and below it 29B1142631
on a tag attached to a bolt on the shift cover 9798972
and stamped on the main housing back bone is a heart shape
thanks tony
on the right side of the case raised letters 3925660 below that is the patent numbers and general motors just above the general moters looks like (1)-10
on the flat area near the tail shaft on the main case stamped in P9S12A and below it 29B1142631
on a tag attached to a bolt on the shift cover 9798972
and stamped on the main housing back bone is a heart shape
thanks tony