Why all the Tough truck challangers using 2 1/2 Rock wells? Just got my mag in and most of the trucks are running 2 1/2ton rockwells. What is the advantage to them over a 60 and 14 bolt? They have to be alot heavier and harder to find parts for. The weight is the one reason i would not want them. More mass to move and get unstuck. I use to see them every where for cheap too.