My Gravely dealer can get me a hub with no problem but it is crazy to have to buy a hub just to get the studs. Can you buy a spark plug for a Kaw engine at a Gravely dealer? Why yes you can but Gravely does not make Kaw engines. My Gravely dealer had no problem changing the oil/filter in both of those trans. when I brought it in for service. I will contact the maker of the trans. and see if they will sell me just a stud, a $3 part.