Dan, This figure from that catalog seems to indicate that the 3/4 ton front housing is a single piece with a bell on each end. The front end fitting into the tranny and the rear into a bell swivel at the carrier bearing. Not a real clear figure, but I would think that if it were 2 pieces, there would be two part number callouts.
fastjet135 really does need to come back with more pictures so we can figure this out for him.