Those always have a yoke that bolts on to the tailshaft with a bolt, not a slip yoke like a regular car transmission has.
I guess I can always buy an A&A kit if I really want a short transmission, but I think those delete the governor. Then you have to manually shift gears.
The tugs would have had a governor and would have auto shifted. Thus my desire to see if they actually made them with a slip yoke.