Need a Little Help,,
You don't have to jack up the car. Just lay down on cardboard, etc, on the passenger side, and look at the side of the pan. If it's straight along the pan, it's a 904. If it has a "bump" in the side, it's a 727
Clicky the linky:
http://www.google.com/images?hl=en&...q=torqueflite,+pan&gbv=2&aq=f&aqi=g3&aql=&oq=
http://home.fuse.net/ckthomas/TorqueFlite-Pans-904-727.jpg
Below is a 727
http://static.racingjunk.com/63/ui/7/11/20255117-505-Racing-Torqueflite-Transmissions.jpg
http://www.tciauto.com/Products/AMC/TorqueFlite.jpg
http://video.boxwrench.net/transmission/images/Chrysler-727-Torqueflite-DVD-300.jpg
In picture below, transmission on left is 727, on right is 904
http://media.photobucket.com/image/torqueflite, pan, 904/jeeping1974/dart727904034.jpg