Trailer sway

MitchF150 wrote:
Not enough tongue weight would be my first WAG.

If the photo in your sig is your current setup, it looks like the trailer is a bit tongue high and the trucks rear end is sagging a bit... I like to tow with the tongue just a bit lower and the truck level..

But, pics are deceiving, so it could just be the angle of the pic... ;)

Adding "sway control devices" to control an uncomfortable tow is NOT a fix.. A properly loaded, setup, engineered trailer should just not 'sway' as you go down the road.. If it does, it's not loaded, setup or engineered properly IMO..

Get some weights on your new rig setup and then you might be able to see where the issue is.

Good luck!

Mitch

EXACTLY!! Find out WHY the trailer is swaying, and correct it.
THEN, and ONLY then, you can put all the "sway control" gimmicks and gadgets on the hitch that you desire.
Now, having said that, let's establish exactly what is being described here; we ARE talking about true trailer sway, are we not? that is, when the trailer begins to sway back and forth in ever increasing arcs? Or, are we talking about "wind wander", that is the effect when a side wind hits the trailer, or the bow wave from a passing vehicle hits the side?
If it is "wind wander", yes, a longer trailer has more surface area on the side, so naturally there will be an increased effect. There isn't much that can be done about it except learn to deal with it.
True trailer sway can be caused by an improperly designed/built trailer (unlikely in an RV), or not enough tongue weight, or the tongue too high, or any combination of the three. Those are only the factors that I have had to deal with in the past. There may be others. IMO, you need to find what is wrong, and fix it, before applying "band aids" in the form of "sway control" gimmicks!
Good luck.