Don't listen to travis, everytime i see the guy he is drinking, drunk, or hungover. :rollside:
Just busting your chops travis.
but in my opinion CST does make a great kit RCD does as well you really can't go wrong with either of them, but when it comes to the best and espeically in the "BIG" ifs kits cognito hands down.
Congrats on the new truck. I would recommend CST. I had the RCD 6" on my last 2500HD and it was fine but not as heavy duty as the CST. This time around I went with the CST and had a custom shock hoop built to install a good single shock vs the dual shocks to the upper A-arms that some are running(which is a bad idea in my opinion).
I run it at the 6" setting with 35's. If that's too tall go with the RCD 6" which is really on a 5". The part number are the same on the Rancho and the RCD and the RCD comes with better shocks.
Here's a few pics:
http://www.hotboatpics.com/pics/data...gress2-med.JPG
Here's the front shock set-up, I went with the Kings not the bypass shocks shown
http://www.hotboatpics.com/pics/data...khoops-med.JPG
Just my $.02,
Chris