Are you looking to lower? Raise? Stock height but new components?
There are several different manufacturers out there so there is plenty to choose from depending on your $$$$ level
One person you might want to actually check with first is Travis over at Az Pro Performance. See what he has over there. He is super easy to deal with and offers great pricing. He really helps us board members quite a bit and has great knowledge of our trucks.
http://www.azproperformance.com/home.php
If he doesn't have what you need he can definitely point you in the right dirction