Mine is 4wd as well ALL TERRAIN package. I have the 2" RC leveling kit on mine and I am having the same clunking noise that has been mentioned above. The noise started after the leveling kit was installed. IT DRIVES ME CRAZY! The truck will never replicate the noise when I take it to the dealer, and I've taken it to multiple shop to have it looked over and nothing wrong could be found. After reading this post today I drove to the dealer and mentioed this thread and they are willing to replace my strut and the mount as a customer satisfaction type of fix because they can't determine where the noise is coming from or can't find anything wrong. I'll take the truck back on tuesday. I hope this fixes my truck....
