My truck only squats when I didn't have air bags. With the air bags it lifted it and leveled it. I have had a lot of problem with this truck so it could be that the springs are bad. It is a 2006 with only 62,000 miles on it but I have replaced tie rods, CV joints, U joints and more. I will probably go for the super springs as I have hear the timbrens don't function as well in the cold. I use my camper a lot in the winter.
I would love to go to someone that specializes in springs but I would probably have to go to Anchorage. That is around 800 miles. I will have to wait till next summer when I may go south.