In pricing out 07's and asking dealers- they called it a 10.5" secondary,
compared to 10.4" now out there.
You do realize that belly pan would need to be hogged out, right, to fit.
FYI, on the 2007 M/Crossfire sleds at the Mpls show last night, they had
added a "dished out" section to the belly pan under the bigger secondary.
They need to dish it out more as you could see where the belt was still hitting
the bellypan/ rubbing off material.
That should be fixed for production- we hope.
I have no idea about the splines.
You should see his ride. It is a polaris with a Arctic cat DDrive on it.
You are right about the clearance in the M and crossfire. Even the brace in the foot well would need a tap tap from a hammer as my 10"er hits at full shift.