Dont use it for daily driving, but do use it for the long trips out to Colorado. It did great getting us through a good 2 feet of snow
Also use it to pull our ATV's through Colorado. Last year we had rented a cabin at 9,000 ft. Needless to say, w/o the rear locker there would have been no getting to it in the rain we had!
Also pull Jeeps around on the Hi-way.
Not to mention....