Kind of surprised nobody has come out with a optional rear diff/tranny that is open, with a selectable locker. Seems like the OEM supplier might thing there would be a market for this. Other UTV's have them, but I want one for my XP1000. Drifting every corner is kinda fun for awhile, but probably slower overall. And I still want to be fully locked up when I get off the dirt road. Anyone ever heard of this?