System was a lot easier to install if you remove the shocks and dropped axle took the spring completely out of 2004 Tahoe.T okhe system lifted my rear end of the vehicle by 3 Inches and when pulling a trailer with the three ATVs you can notice no squat in the rear. An excellent system
Firestone Air Bags Improve Handling
The air bags made a great improvement in the ride and handling of my 2015 F-150 SuperCrew when towing my Lance 2285 trailer. I am using 10 psi in the air bags without the trailer, and 35 psi when towing the trailer, and that seems to work well. My only problem installing the kit was restricted access to the left side frame rail for installing the backing plates for the frame bracket bolts. Two brake lines were blocking the access hole so I had my favorite shop install that bracket.