Do they sell a set of them? I've just saw them individual:
http://www.kthobbies.com/~kthobbie/c...ml?id=JpqCZfH4
BTW, I had a outdrive ring come off and get pretzel'ed. Had a heck of time finding one, all on back order. I see they are back in stock and will surely have an extra in my box from now one.