Hello All, My Craftsman 30" riding mower RER1000 slipping out of gear to lower gear. The park brake also does not always...

Thank you. I did a lot more than I needed to take apart but now I know and the trans got new grease. The metal rod off the transmission wore a grove in the back side of the drive belt. Is that normal? I wouldn't think that it should touch the belt at all. I'm not sure if the arrow is the proper spot that is rubbing the belt. It could be the other end.