I have GM in mine, they sell the porkchop lookin things, they are like $60 a pair, they are different heights and go by the color stripe on them. I have either the green or purple ones, I still have the part # on my garage. Then just go by new shocks of your choice and tell them you have a leveling kit. I am maybe $300 for level kit, install/alignment and new Rancho shocks. I have 285/75 tires and it is perfect with no trimming. Also if your truck is under warranty then it wont mess with it because its GM parts.
