I bought mine from Rockymountainsusp.com. It is a Skyjacker.(I heard bad reports on the rough country) It was $510 for the lift and shocks. My lift has add-a-leafs but of course you can get blocks. That was the cheapest I could find at the time but i have seen them cheaper since then.
I was thinking of that. Where did you get yours, and how much did it cost? It really does make the truck look better.
You NEED a 2-3 inch lift on that truck. I put one on mine with the 285/70/17 tires and it looks much better.