Just curious, why not Ride Rites or Air Lifts? I've run them to level out the rear of my '00 while towing our trailer and now they're on the '05. Not a bit of problem with them. I have the onboard compressor and run about 40 lbs +/- while towing and then deflate them to minimum pressure (5PSI) where they stay put with the minimum pressure switch until I tow again. There is no change in the ride quality at minimum pressure. You also get roll control with out a rear sway bar. Seems the best option, IMHO.