[laverdur]

My Monty has the MORryde pin box and I have never experienced jerking, chucking or bucking. That said, there is nothing that can be done about bad roads and bridge transitions. Even with the MORryde, there is some slack between the kingpin and the hitch jaws that allows some movement but the rubber shear spring in the pin box absorbs the shock. There are other pin boxes that use air bags and shocks to accomplish the same thing but I prefer the MORryde.