[jsb5717]

Does it help to define terms?

When I think of chucking I think of slop/movement within the hitch itself...the Andersen doesn't have any of that. However, if the hitch isn't properly torqued to the bed then there could be movement and noise there.

I think I hear the OP taling about porpoising, mentioned earlier, where the truck and trailer battle for equalibrium when going over various bumps. That's not a hitch issue but a spring, air bag, timbren kind of thing. That can be minimized though not totally eliminated.