I bought the 2" AS leveling kit about two years ago and finally installed it in my truck yesterday. I also just bought 20" Lariat stockers wrapped in 33" Cooper Zeon LTZ's but I won't be getting them for a little while, waiting on shipping. As soon as I do you can bet I'll post the pics right away......can't wait to see how they look on my truck! The AS install was a breeze, the first side took about an hour and the second took just about 25 minutes. The front of the truck sits just 1/4" higher than the rear now, hopefully it settles a little bit. I don't know if it's just me, but the truck seems to ride so much better now, anybody else get the same results?
My truck started out in life on 17's, then I bought the 18", 2011 FX4 wheels & tires. In a short while she'll be settin on 20's.....baby steps, LOL! Here are a few pics before and after the AS install. Let me know what you think

 

looks good!

 

Makes all the difference! Now you need to add 3" blocks to the back!