Yes, I have had them on 2 trucks now. It found to only use the Air Lift brand. Local installers has had trouble with the Firestone brands. I have never had issues with the Air Lift. I bought mine and my brother in laws at Amazon.com w/free shipping. Go to Air Lifts site and find the model number, then just shop that way.
Related; If you tow and your rear bumper sags more than 1 inch, you need to level out. Air Lift is one of the easist ways to do it. Mike Clark could feel something wrong with his truck, but the dealer kept steering him wrong. It was the sag from his tool boxes causing a bind in the drive train. Air Lifts stopped it. My new toy hauler sagged mine 4 1/2 inches. Air Lift leveled it out.