I just bought a Robby Gordon Rzr 4. I have a total of 12 hrs. on it. Something blew out a hole in the transfer case, gears started grinding. I took it to the shop where I bought it, the service guy said that this is about the 4th or 5th one he has seen with a hole in the same spot. Has anyone experienced this ? And what can I do to prevent it from happening again ?