Here is a pic.
Same drive shaft as the Rush... Which is a different spline dimension/count than the current IQ driveshafts.
I spoke with a few of the engineers at Polaris and they are steadfast that the current setup is the optimal driver arrangement for the sleds.
There are 3, 2.86" pitch drivers, one center extrovert and 2 standard involute drivers.
I spoke with Robbie at Avid yesterday.. He has Combo drivers in the works already for this in 3" and 2.86" pitch... they are very similar in looks to the Arctic cat drivers.
2011 Pro RMK Drivers/shaft
New style Avid Drivers