When I release the clutch/break I get a grinding sound forward or reverse the sound is the same just started doing it out of the ordinary and I parked it right away it sounds like its in the transaxle is there a part that wears out and needs to be replaced? Is it a part that could be covered under a factory warranty? Its been a wonderful machine and I keep it looking new and maintained Ive been cutting 1/2 acre all season long for the past four years !anditspmuchlevel