Great product. I am in awe of the great engineering and thought required to produce something that can be applied so simply. It took about 1-1/2 hours to install. I didn't even need to jack up the truck (2008 Dodge 2500 Laramie 4x4). I installed them to level the truck after installing a cab-over camper. I'm extremely happy with result.
hauled 2500 lbs. of lumber on truck & 2500 lbs. on a trailer. only had 15# of air in the bags. I wanted more air but I had the tailgate down and could not get to air valves. truck was sitting on snow and ice. I am going to order the air lift compressor when I get through with this review. truck still handled well with the 15#.