We have an '87 R60 with 2,500 hours on it and our cage is original. Some cage wear is now apparent. We are currently in the process of modifying the cylinder and the cage as suggested by Hyper Harvest II on this web site. He is confident that with the modifications will drastically reduce cage wear, amoung many other things. Your cage should not be wearing out this fast though even when run stock. I strongly suggest that you consider modifying your combine like Hyper Harvest II suggests. I can't speak from personal experience yet but, I've talked to many farmers who have done the mods. and they are all true believers. Good luck