2007-2011 Polaris IQ Snowmobiles Service Manual, Page 329Get this manual
PVT System DRIVE CLUTCH
Identification
Every clutch will have the clutch part numbers etched on to the cover (A)The "X" (B) marking is an index mark where the clutch cover (C), clutch spider (D) and the stationary sheave (E) should line up when the clutch is assembled