Sorry, my wife has first rights to my old as*!.......:rofl: So, get in line.
If you replace the carbone ring, I would suggest that you also replace the carrier seal and "0" rings. It may look good, but sometimes, when you have metal to metal components, they get "burned" in to each other, so a fit with a new one may not match up exactly. I think the chances of the carrier being o.k. is about 70%. But, I'd replace it if it were me. I don't like leaving things to chance when I have it tore down. You put it back together and find that it's worn to bad to get a good seal.
The carbone ring is part #7, the ring carrier is #8 and the "0" rings are #9 and #10. If you need these parts and are looking to order them on the internet, you can order them through this link
http://partsfinder.onlinemicrofiche.com/seadooforums/Seadoo_oem/Seadoo_PWC.asp?Type=13&A=50&B=22 which is supporting the forum with your purchase.:cheers: