I traded my rebuilt 410 chunk for another 323 chunk from another member. Let me start by saying I haven't installed it but noticed when you turn the yoke I have a noise coming from the area right behind the yoke. sounds like a bearing or something squeaking. It doesn't seem to be the main bearing behind the yoke but I've never had one apart soo I'm wondering if there is another bearing and that's making the noise. Any help would be appreciated, I don't really want to bring this in if its something I can take care of. thanks, chris