I installed the 3" leveling kit today on my 08 screw 2wd, It took me about 2hrs to get it all done. The truck looks good however it seems that the rear is sitting about 1" lower now, so I will be ordering a 1" block to level it out. I feel that it rides a whole lot better than before. I will post some pics soon. I used a 3" leveling kit that I bought from fatbob's garage, I looked at the ball joints and they don't sit too much different then stock. Thanks to everyone's postings here I was able to decide what I wanted to do with my truck. Wheels and Tires will be soon to come, I have to talk my financial adviser into it since my truck only has 3k miles on it. I will post pics before I install the 1" rear block and after.

 

That's why people normally get the 2" kit. Interested to see pics of your truck...especially the ball joints.