I have a Toro Time Cutter 75754 that I have had a problem with blade stripping out spindle / blade notch pattern. I would like to replace spindle with one that uses "star" pattern. I can't find a place to ask Toro... all parts end up at the OEM circle with 2 flat sides. I'm willing to replace entire spindle assembly if I could just find out if there is one with the star that will fit in the same mounting hole and belt arrangement.