I helped a friend install his trailair pin on his MS during our winter one time and on their trip North he and wife were disappointed of the chucking that was a new thing. both were not happy. As she was shopping and no trailer on the truck he saw the bar that goes across was sloppy so he adjusted it and that was the fix. We figured going down the road and the fifth was floating over the bumps it would slide back and then letting up it would go the the front to make the chucking. Only thing we could figure as it was fixed. I have never experienced a chucking issue. Nice rv and truck Rusty.
chevman