Going back to the original topic: Lockers….
In my opinion the locking differential(s) significantly helps on the rocky and sandy trails. I was in CO last year and I had to use momentum to tackle many sections of some moderate trails. This is not a good thing… I can still see scratches on my chassis when I change oil.
This year I tackled the same trails with the rear locker and I was stunned. This is a completely different truck. The biggest problem I had were steep sections with sandy and rocky surface. All problems gone. Someone may argue that my skills improved over a year but I would doubt that….
I am also very proud of my work since I put this locker pretty much just by myself in my garage. This was a big jump from my previous project (oil change). Anyway the locker works like a charm (after I fixed leaks from the compressor) and I think this is the best mod you can do to your truck (after decent tires).

This spelling is killing me. Not that anyone cares anyway...