I would call Carl's in Boise and ask that question if I were you. They have put a lot AC tracks on Polaris Pros. I am pretty sure that includes the new 2.6 Powerclaw.
We have done quite a few powerclaw tracks on pro's in the last few years but they are all 2.25's. For those we have custom drivers made but they are still 8 tooth. This week we did put a 2.6 on Jacks personal seld using 8 tooth drivers but we also installed a rolled chaincase. Without the chaincase you would need to use 7 tooth drivers.