Well, the new guy here has a question.....Rough Country makes a very complete and affordable 6" kit but they stop at the 2005 model year. What would be the difference between the 2005 and the 2007 2wd suspension? I would think that the kit could be used for both applications. I emailed Rough Country but have not gotten a response.
If you just want a 4" lift in the front without any major mods, go with the 4" CST spindles: