Why didn't I buy these airbags years ago? What a difference in handling and drivability! No more dog tail wagging when pulling the cab over the camper. The car's rocking and swaying is controlled and it likes the feeling of confidence when driving on winding roads. Best $300 I Spent On This Truck! The truck stand is easily leveled and easily adjusted for water and fuel weight. Use a small onboard hot dog compressor and 20-foot coiled hose to adjust tire and airbag pressure. It took me a while to carefully install individual air lines and route them into the existing frame holes available in each wheel well. Installation took approximately 8 hours which can be taken as a more accurate estimate of installation time when using floor jacks and typical power and hand tools.