I was perusing the Roxor website and saw where you can buy Warn Locking Hubs for the Roxor. I think I read where it has floating axles. I recall actually telling my buddy that I thought that's what his new Roxor had. Can someone help me understand what a "floating" axle is and why you might want locking hubs for it? I'm making upgrade suggestions to him...spending his hard earned money...but I don't want to suggest something I know nothing about. Is there a solid benefit to having the locking hubs?