Kind of dredging up an old thread, but I just had new tires, ball joints, and alignment done this week and searched to compare settings... and found this unanswered question.
In the Phoenix area the only shop I'll let touch my truck, besides me, is A2Z Diesel at Center and McKellips in Mesa. Ben, the owner, and crew specialize in Doge/RAM with the Cummins engines and is a serious straight shooter. Some folks don't like that he will not sugar coat things, but he's honest to a fault and I appreciate that.