Big Block OR Small Block 727????

The motor home transmissions I've seen have a very short output shaft and tail housing. The ones I've had actually have a drum brake installed on the tail shaft for emergency brake. Very obvious. You can convert a motor home to use by changing the output shaft and housing. The one you're looking at does not look like a motor home.
http://www.forabodiesonly.com/mopar/showthread.php?t=228120


See the diagram I posted in post #2. It gives some dimensions from a performance book I have.

This is the motor home style I am familiar with. There may be others

http://www.forabodiesonly.com/mopar/showthread.php?t=57836