Did a little more on mine this morning. I made a roller on right front corner a while ago. Was originally a skid bar, but that was digging in too much. The plastic roller was wearing out. Problem with my rig is it is on an angle with the shape of the mower and not rolling directly in travel direction. So, till I come up with something better, here's my latest... Used old spindle bearings spaced with parts of previous roller.