Help: Not sure which drive shaft seal I need

[dakota7557]

Hi, I have a 2000 Nomad FI 1500...I will be replacing my drive shaft seal and I have the book on it containing the part numbers. I just want to make sure I have the correct seal that usually breaks down. Is this seal part #92055A or is it 92055C...These are the rubber O-Rings, which I assume is all I need...This bike has sat for 10 years and I recently purchased it with only 195 miles on it...I now have over 1500 and the seal is leaking like a sieve...Any information on this would be greatly appreciated. Thanks, Jody

P.S. This is the site where I looked up the part numbers:
http://www.gadgetjq.com/nomad_fiche/main.htm