Shaking/Shuddering while towing trailer

Huntindog wrote:
Is the TV a rear wheel drive? Your symptoms sound a lot like driveline shudder caused by the rear differential pinion angle being off from the added weight on the hitch.

IOf so, then the first thing to do is check the TW to make sure that you are not overloading the TVs specs for hitch weight.
On some vehicles it may not be realistically possible to eliminate driveling shudder completely.
My TV does it briefly when loaded down and accelerating from a stop. Many Ford and Dodge owners report the same.

What is happening is that when there is a good load, the pinion angle changes under acceleration, and the u joints get out of phase causing a vibration. Some fixes that have worked are air bags, stiffer springs, traction bars, and pinion shims. A custom driveline (expensive) with one or more CV joints will likely always solve it, but because of the cost, and sometimes room considerations is the least common fix.

While googling i found some stuff about the Fords and Dodge.
The Odyssey is a front wheel drive minivan. It's definitely built for hauling a family around, and not necessarily "tuned" for towing, especially a high-sided RV approaching the weight limits, but that being said, I wouldn't expect the thing to shake and shudder under any acceleration/deceleration.
I understand that I can't drive 80mph uphill with the A/C on, but pulling away from a stop sign with the gas barely pressed down on a flat street?

I will probably have to go back to the dealer (that installed the hitch and where I bought the RV) and try to nail this down, maybe with one of the fixes you mentioned.