That I know of for sure the pinion bearings are
Different 09 and up and run $80 for the set.
As far as case break I'm not completely
Sure I just recently did a gear swap and installed
A true trac, and didnt see that to be an issue And the pinion bearings didn't match
The kit. I had to by them seprately.
I've only done 1 as far as that new model.