Great post. I do differentials myself and sometimes its amazing how little people know about their diffs, they dont know there is a difference between LSD and a Locker.
I installed a Detroit Locker on my 96 Ram, sure is fun to put one tire off the road, the other in sand/grass, and watch people as I boil the tire off thats on the concrete equal to the one thats off the road lol. If I ever sell that truck, I'm yanking that thing out and slapping the open diff back in!!!