If you take the Cub part # and do a google search PPowersales comes up on e-bay, this is the same guy I posted about and they show as in stock. Just call them and save all the Flea Bay crap. Here is an example of a search for a 1440 clutch.
717-3375
http://www.ebay.com/itm/like/2515474...lpid=82&chn=ps
717-3389
http://www.ebay.com/itm/like/2715115...lpid=82&chn=ps
Go to the Cub parts site or parts tree, find your part number then get on Google and put in "Cub Cadet "partnumber" " and see what comes up. Example (Cub Cadet 717-3375) and you'll get a bunch of people selling replacement PTO's one of them will be PPowersales AKA
http://xclutches.ecomitize.com/