So my Quick 36 has been making a grinding noise when I engage the blades. I took the blades out and the spindles out their housing and the balls from the bearings immediately fell out and their were little metal chips that fell out. I only checked the two outside blades. I've never changed bearings like this on a mower. Do I just change the bearings around the spindle itself as I see nothing wrong with the spindle shaft, or do I also change the housing. I'm not really sure where the chips and shavings are coming from as there's grease everywhere, but it's obvious that's whats making the grinding noise. Thanks for your help.