I was just getting ready to tell you about airbags and 5er hitches - sometimes the hardware gets in the way of each other on the frame. You must have a hitch that will allow bag brackets. I also have Rancho 9000 shocks and I use the compressed air system to adjust the firmness. Fine tuning the shocks on a bad road makes nearly as much improvement as fine tuning tha bags. Together, they are awesome! I've thought about one of the air hitches before but I've worked on the truck and 5er suspension (better springs, shocks and ez flex) enough to take out all the bad slamming. Craig