RZR XP 4 1000 2015 XP4 vs 2014 XP 1000 gearing May 5, 2015 Is the internal trans gearing different in the 2015?? Also are the front shafts bigger on the 2015, then the 2014?? Looking to upgrade to another XP4 and sell my XP 1000 2 seater since we have alot of family that wants to ride now. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related