Bought an airlift for my F-350. Had the large fifth wheel pulled and trying to straighten it when towing a trailer. I haven't road tested it under load, but I hooked up the trailer and was able to jack it up and level it. I think I will be very happy with this purchase. Installation is not difficult, the instructions are very simple. It took a little longer, but that's just my opinion. Although it took a little longer, it wasn't a difficult install. The complexity of the setup has more to doโฆ