the Kelderman air ride rode fantastic , was Kool. But did experience issues , truck was inoperable , had to be flatbedded back to Iowa. For Kelderman to rework n fix. Witch they did all on there dime. Warrentee was told 5 years 100 k. After that Kelderman reluctantly dropped my warrentee to 1 year , I need a basic reliable lift with minimal parts to malfunction . If I was hauling my cigarette or 5th wheel , I’d would have been screwed , not worth the risk for me for a better ide. And ability to raise and lower the truck at will. If one sensor fails you’re done , controller. Malfunctions , ect , as stated Kelderman was promp and fixed the issue , just not my cup of tee , best of luck to all