This is an excellent post. I am very mechanically inclined, but I do not, nor would I ever pretend to know how to set up a rear end. I would take it to a shop who does, or to my buddy for his expertise(he build race 9" rear ends, narrows them, cuts them, whatever)...but after seeing this thread, with pics to explain what we all read (heel, toe, pitch, backlash, etc)...if you havent seen pics, those words mean NOTHING.
very nice job...and thats exactly what the pattern on my 90 Mustang looked like when we slapped 3.73's in it.
its as if you guys are mind readers...I like to see new info...before I even have to ask or search.