Hi Dustin, thanks for the reply!
The next time I run a print on it I'll take a video and post here for better context of what's happening. The reason I suspect the bearings are going is two fold:
1. When I first got the printer one of the x/y axis stepper motors had catastrophically failed. After replacing it I opened it up and the internals had mostly disintegrated (which isn't entirely surprising given the use of the machine and the fact that those motors can put off quite a bit of heat).
2. I noticed metallic dust around the X/Y axis bearing at the top left of the printer.
The best was I can describe it is that the left/right movement of the head sounds "crunchy". I also noticed that there's a few millimeters of play in the left/right motion of the head.
Again i really appreciate your help on this! (P.S. If you have part numbers for the other misc parts like belts I'd be interested in replacing those as the belts are beginning to sag).
~Razumi