I'm just curious to see how many people drive on a highway, 60mph or more, with their trucks in 4x4. I live in ND, and in the early and late winter, the roads get pretty icy due to thawing and freezing. Sometimes you can't even tell that its ice on the road. I don't want to go sliding or spinning out of control on the highway. I also don't want to put too much strain on the drivetrain by driving in 4x4 too much, if thats even possible.