Look for a small sheet metal plate held on by two screws on the underside of the tailshaft housing. Under there, there's a big snap ring that engages a groove in the output shaft bearing. It requires a set of expanding snap ring pliers with flat tips to hold the ring expanded while you pull the housing off. If it's been there a long time, it might be a little stubborn.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!