podzach.... 'Oakman' had a good post about trying to adjust some of the load from the rear of the rig and more onto the kingpin....this may help a little.
Cucking is 'no fun' for any length of a trip and it can be down right exhausting !
As you probably know 'chucking' is the fight between the truck and trailer as the wheels pass over the same road imperfections, bumps - dips, at a slight different time.... thus providing a tug-and-pull -push sensation.
This can be very hard on the connections and all the frame work... for both truck and the trailer.
I choose to invest in a Trail Air Tri-glide Pin Box to smooth out the ride.
It has reduced the chucking to almost non-existent and the harsh bumps and dips are cushioned by the air ride and shock giving the driver and co-pilot a more comfortable ride.
'Plus' the trailer frame is not stressed so much and the interior items are not bounced around as much as well.
Hope this helps
'07 WildCat 30 RLBS ~ West Coast Edition ~
Trail Air - Tri Glide Pin Box
2000 F350 DRW 7.3 Diesel Lariat 89k miles
Edge programmer, 4" SS exhaust turbo/back
Vancouver Island, B.C., Canada