I have an older bolens 824 with worn nylon wheel bushings. Was hoping I could separathe axle from gear to make it an easy job. There is a pin through gear to axle but will not budge. I am afraid gear may be welded to axle. Can anyone confirm. If I could get the friction drive plate (not the rubber wheel). Off, I think I could get the axle out. Could not find any you tube video. Any idea? Maybe unbolt the side plates.? Thanks for at help.