took machine for a ride this afternoon it has a total of about 30 miles on it. I started climbing some pretty good hills on the powerline and when I got up on top it had a very noticeable whine that fluctuated with the motor rpm. I turned around and came back toward home and as I got closer to home the whine started to get quieter. when I pulled into the yard the whine was still there but much quieter. I shut it off for a couple hours and went back out and started it , the whine was gone.. The noise was there even when it was in park after I got back. Has anyone had this problem, what is turning besides the motor when the motor is running in park. could it be the clutch? or is there a transfer case that is turning? anyone got any ideas? thanks.