detroit(auto locker) is my favorite. I've used had auto, lunchbox, and selectable. nothing like the reliability and strength of an auto. current set up in both my rigs is spooled rear, detroit front on one rig and aussie front on the other.
lunchbox style lockers work great up front. with that being said, after 8 years of beating my truck, the center pin broke so I had to replace it. and that's running 40s.
