was going to start out thanking everyone for all their help with my mower, and I still want to say, thank you, but it appears that another problem has cropped up ! I replaced both roller bearings and one bearing on the cutter shaft, on the non pulley shaft, checked everything out, greased everything real good, and started mowing ! about half an hour into it, there started to be a vibration and a noise coming from the mower ! sounds like its coming from the gear box ? now do you think the bears going out of that too?