lite weight trailer sway

I thought about the water tank, but when we looked at its location being right over the axle we weren't sure it would help. Propane tank is a good idea, his complaint that there is only one now.

Definitely try more tongue weight, that seems the most likely reason for the sway.

First off, it COULD be the truck tires. When the trailer gets off-line from the truck at all, it pushes or pulls sideways on the back of the truck. If the truck's tires are too flexible and/or underinflated, the effect is amplified and can turn into real sway. Stiffer tires will absorb or block the movement and keep the trailer in line better. It won't prevent all types of sway but it helps with certain kinds.

Second off, towing a swaying trailer is DANGEROUS, period. A swaying trailer is literally trying to move faster than the tow vehicle, and will try to pass you by regardless of how big your truck is. You would most certainly worry if the trailer was swaying.

Third off, yes, single axle travel trailers in my experience are more prone to sway, and require heavier tongue weights by percentage.

Try to get the tongue weight up to 600 lbs. He'll be amazed at the difference.

Thanks,

truck has load range c LT tires which are properly inflated.

He is going tot ry adding weight to the front even going to add a second propane tank which he wanted regardless.

Also, if there is room on the tongue, add another battery. The extra juice always comes in handy, and the added pounds will help with tongue weight.

Sounds like an issue for a person when I first started posting on here 10 something years ago. The main posters said add a sway bar. I said to add hitch wt. I got chewed out for not recommending a sway bar, only doing the hitch wt. Person added hitch wt, and could go to 70 mph with NO issues. He then added a smaller sway bar kit for added measure.
I've found with the single axel trailers I used for my landscape biz with mowers etc, that getting into the 15-18% range vs 11-14 or so for a dual axel, that it helped keep the sway at bay.
Some other issues NOT mentioned. How is the side to side load? if one side is heavier by say 400-500 lbs, then that could contribute to sway also. Also possible. the tire portion of the axel is not in alignment. rare but possible. Along with one tire being having the tread shifted, other is running smooth, one is lumpy, very slight, but still able to move a trailer sideways.

Marty

I'm glad this topic was brought up because I'm having the exact same issue with my new Puma xle 17qbc the hitch is set up almost dead level the factory tongue weight is 405pds I actually took by 30lb tank and slid it forward an extra 5 inches and I also loaded more in my front compartment. I also put 65 psi of air in the camper tires they only had 60 psi and after all that it seemed to help I think once I load the rest of are stuff it should be good.