I am looking for input from anybody that has run the same setup and has experience with these parts. I am going to run the Rough Country four link 8" kit on my 06 ccsb. I plan on leaving the 2" leveling spacer that I currently have on my truck on top of the new springs. My only concern, is at this lift, will I need to do anything different with my front driveshaft? How about castor adjustment, I know that superlift has some options for additional castor adjustment, but will this be necessary? Also, I was curious if the additional 2" of lift will create steering issues, as far as track bar issues? I know that the 8-10" range is where major changes need to take place, just want to know what anyone who did this encountered when building their truck. I am a little sketchy about it, because I picked up a jeep that was admittedly hacked when I got it, but with the spring spacers on top of the lift, it made the jeep almost undriveable. I drive my truck daily, and want to continue to be able to do so whether it's around town or at 75-80 on the freeway. Thanks for any input.