The super 60 is a monster of an axle compared to the older D60s as well. Absolute beef.
Monster brakes and considerably tighter turning radius is nice too.
Quick warning for the coil sprung D60 though, they are super sensitive to steering component wear.
Something as simply as a sloppy tie rod can induce some nasty wobble.
Also, when you get it aligned, aim for 4-5 degrees of caster.
While nice, they are also expensive and not needed for a near stock ride height.
If running a big lift, by all means, you need adjustable arms.
But keeping it near stock height, as in 2" or lift/leveling or less, you can get it within spec with nothing more than $50 or so in caster/camber bushings. :ylsmoke: