Chucking?

Sabretooth007 wrote:
For what its worth in my opinion, the problem is created by poor manufacturing, the 5th Wheel axels are in the center of the trailer, which causes an easy up down movement. In retrospect a semi trailer, Horse trailer and the like have their axels at the rear which causes less up and down movement. Their is also the question of how the trailer is loaded and its weight plus levelness with the tow vehicle. A trailer which is high at the front (not level) affects the center of gravity and in turn having a poor center of gravity causes driving and stability problems. Also fresh water tanks don't have baffles so any movement of the trailer will cause the water to move in all directons (same with black and grey tanks)

One of the easiest ways to correct the problem is level the trailer to the truck, and slow down, 55 mph is a good speed as noted driving CA..
And if you don't want to slow down then don't complain..

I think "chucking" is a back and forth, jerking motion and not an up and down motion. That's why I don't think truck or trailer suspension has much to do with it. Shocks, springs, and air bags certainly has effect on up and down movement of the suspension/axles but won't have much effect on the back and forth movement of chucking.