Superlift has a good reputation. They make solid systems. Also i think SteelHaedz said that you can take your factory front coils and move them to the rear and purchase aftermarket 4 inch lift springs for the front. This should save you some money . You will still have to purchase track bar relocation brackets and some of the accessories but you can custom taylor a lift to you personal style. Just some thing to think about man.
much cheaper and ALOT easier for me to install, but what would happen if i bought this and put them on waited on the new shocks, would the old ones blow out or something?
It depends on how bad the roads are and if your suspension drops too much with a bad pot hole or something.
But keep in mind at three inches of lift you might need a transfer case lower kit in case you pick up some vibration and you will need brake line extenders due to the fact you have 2 inches of body lift.