identifying 4 speed automatic

904 based, 3 pin, the pan rail numbers are in post #1 - that is what I can't find a place to search. I know they would tell me the original application, but can't find a site that would tell me how to decode them. (I know it isn't a Jeep trans as it came from behind the 360 in another members Dart!)
Didn’t the other member have any info for you? Kim