I have not done it personally, but I would use one of these over a D60. They have a stronger ring and pinion and can be built with 35 spline axles, many of them have them. I have also heard of using a special locker and 40 spline axle (like 2.5 tons). There is a bunch of aftermarket support for them and you can weld anywhere on the housing, making them easier to do 4 link suspensions, or antiwrap bars or whatever.