I have a 2005 with 2500 miles on it and the bearing housing for the middle gear is broken out of the crankcase. Anyone else having this problem? I am not easy on a machine but it is pretty well stock and leaves me looking for a 1000 dollars worth of parts. Crankcase, middle gear set and bearing housing plus gaskets and such for the top end. Just wondering if I am the only one having this problem. Was going to trade for a new 700 but am now second guessing myself. Thanks, LT

Unfortunately that is not an uncommon problem with the 660 Rhino. $1000 is cheap to fix it, usually it cost closer to $2000. The whole motor goes boom when that middle drive gear beariing goes bad.

I have heard that the 700 motor has an improved middle drive gear bearing support, but you may want to verify that before spending the money for a 700. The Kawi 750 motor is a much better motor than the Yamaha 660 motor, if you're looking for a new side by side (hint, hint)

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'07 Yamaha Rhino 660: Lonestar long travel suspension w/ Elkas; Gorilla axles; Trinity sheave; Dynatek CDI; Gibson exhaust; Warn 3K winch; 26" Terracross tires
'07 Yamaha Grizzly 700: Ohlins suspension; Dynatek CDI; Fasst Flexx bars w/ Rox Risers; Warn 2.5K winch; 25" Terracross tires
'08 KTM 950 Super Enduro: oh my god fast.

thanks for the input, i did not kill the top end so i may be lucky with doing the bottom end. parts are expensive in Canada so I will look up a dealer in the States that will ship to me. LT