I have had 3 springs brake in the last month, my original spring lasted 3400+ hrs. Kubota has replaced all 3 under warranty they should investigate why this is happening. My shaft that holds the tension rod broke it was the original I replaced it now the part that holds the tension arm needs replaced DISCOTINUED(76550-34720). Good thing I have a RC60-F24 deck I think I can have the discontinued part made by a local machinist. I just need this machine to last the rest of the season then everything is for sale.