I'm fairly new to snowmobiling but I've learned a ton from this forum. I'm riding a 2007 D7. I would like to go back to the stock Polaris Gripper ski. I have a take-off pair from an 08 Dragon. I know the spindle design has changed slightly from year to year 07 thru 09. Will the 08 stock Gripper skis work with my spindles? The skis came with mounts, ski bolt assembly, etc. Thanks!