I love the ones I put on from AirLift. I ran two isolated lines, by doing this it stopped the side to side motion in drives and in the dirt. You can check my pics. Plus with a full load of 55 gal of water, fire wood, riding gear and trailer loaded, the drive was not work any more. Amazing how much of a differance it made. My 2 pennies...
I have rear air bags installed, got em put on at les schwabs for about 500. love em, i just have the manual fill ports right now, but will get an installed compressor sooner or later.