Absolutely have no idea what "chucking" is but if I were to guess, would it be the feeling of being chucked back and forth from the trailer pulling/pushing when you hit bumps? I have 5th wheel and no truck yet but have an Andersen hitch and was told the flex in the box could cause something sounding like chucking. Was told this add-on would take the flex out of the box.??
https://andersenhitches.com/collecti...ex-lockout-kit. I got one, now just need a truck.