The earlier Torklift lower stable loads were not adjustable like the newer versions are. My guess is most dont know what they looked like. Basicly they made constant contact all the time, like many of these home made versions. I had a set and they made the truck ride like a tank. The ride was that rough in the rear that I would knock out tail light bulbs on some trips when I was running empty. Loaded ride was no problem. When one of them broke I contacted Torklift and they sent me a new set of the new adjustable ones. Now there is no way I would go back to a lower bump stop system that could not be disengaged quickly and easily.