Just bought a new 20014 Z71 double cab truck with all the bells and whistles. One thing I don't like about it is that the front end is about 3 1/2 inches lower than the back end. Had somebody tell me to add a leveling kit to the front end to level it out with the back end. What are the negatives of doing this? Well this damage or change anything in the front end? Will it change the riding of the truck any? I am going to add a fiber glass shell and will pull a 29 foot camping trailer. I don't want to end up with the rear end being lower than the front end so I am going to wait till I get the shell on. I also had the same person tell me to add air bags on the rear end so when I pull the trailer I can adjust for the added weight. Just want to get some input before I do this.