Agree with John that the smaller trailers will be okay, but higher weights has
both the length of the ball/shank an issue (solve by increasing either that length
and/or the amount of force via the bushings)
What isn't or hasn't been discussed is that the regular or traditional WD Hitch
systems 'do' beat up the coupler latch over time WITHOUT the constant contact
and force of the bushings.
The dynamic forces are NOT just from braking, or acceleration, but from all
directions during a common road trip over the less than pristine roads, RR crossings,
potholes, etc AT SPEED
What would you guys think or guess the forces on the latch is during a severe
whoop-do ?
Where the hitch is driven downwards to stretch the bottom plate to chain to rod to bushing?
There has been reports of the bushing shattering, or when the set screws employed
that they did not hold (allowed that bracket to move)