Hi, a couple of years ago, i put a new clutch, pressure plate, and throwout bearing on. Everything has been ok since then. Last week I was mowing when the tractor quit moving. After tearing it apart found that the clutch disc center had torn out of it. After speaking with the sales rep on this web site. We wondered if anyone had ever tried to switch this over to a 6 inch clutch instead of the 5.5. If worse comes to worse I plan on replacing the clutch disc and the pilot bushing everything else looks great.Also the choise on the clutch disc is either solid or spoked. Just want something heavy duty..don't want to do this again ...not that fun. thank-you