After reading here I determined the inner primary bearing had gone bad. Growling noise in neutral that went away when put into gear. My bike is an '08 Roadking with about 25,000 miles. I decided to fix it myself and i'm having great success. Got the bearing and race out. The race is definitely compromised and the bearing has too much play... Just waiting on replacement part to deliver. Here is the thing. There is no evidence of old grease on the race or the bearing. I cannot believe that to be caused by wear. I would expect to at least find some dried crusty evidence. Thanks for letting me share.