I noticed that my spindles were getting loud at the end of last season, so I decided to do my own repair this spring. When I took the old ones out, I decided to look into what went wrong. I was expecting that bearings would be worn, but what I found was that the shaft actually was worn out in the areas where it contacts the upper and lower bearing. The bearings seem fine, but there is a 1/16 to 1/8 groove where the shaft meets the bearings. Is this normal? The spindles are on a Ferris and are the non-greasble type. The new ones have a grease fitting on the top of the shaft. By the way, this unit has less than 150 hrs. on it, and it looks like all three spindles have the same problem.