I went with the 2" lowering springs kit from McG for the rear on my '12 2wd Express 1500 after I had Helwig front and rear sway bars installed. I took crude measurements of the gap b/t the top of the tire and the highest point of the wheel well. Unfortunately, the McG springs really only lowered it about 1".
I would definitely like to bring the front end down 2" and the rear another 3"-4", but... I don't want to suffer ride quality. Any suggestions?
How quickly after did you take measurements? They take a while to settle to their full drop height...