I've read somewhere (in here I think) about someone having a very annoying squeak on their Outty. I also think it happened after a CV Joint Repair. I have been infected with this same squeak and I did replace my CV Joint not long ago. It does it when I rock it side to side and the noise is VERY elusive, meaning I can not pin point the location. Sometimes it sounds like it is coming from the rear, sometimes from up front, sometimes dead center.
Talk about frustrating. I'm just glad the LTE Pipes drown it out when riding otherwise I would have my quad in about 400 pieces right now. Has anyone experienced this or heard of someone who did?