How to eliminate Trailer Sway that Occurs at 55 to 65 MPH Even With Sway Control

Expert Reply:

Sway controls are designed to be used in situations where sway is a direct result of some type of road condition, like high winds or large vehicles passing.

If you have sway with a trailer under normal towing conditions, sway control will most likely not correct the problem. The best defense against trailer sway in all conditions is proper trailer loading. You will need to check your trailer tongue weight and gross trailer weight and get the weight distributed properly. Most times sway is induced by too little tongue weight on the trailer ball. Your trailers tongue weight should be 10 to 15 percent of the total trailer weight, loaded and ready to tow. Most of the time redistributing weight in the trailer will solve sway issues especially if a weight distribution system with sway control is used.

You should also evaluate your weight distribution head and spring bar setting. If you do not have enough spring bar tension then sway will not be reduced efficiently. By changing the angle of the ball mount (see instructions) you can change the amount of pressure applied to the spring bars and the amount of weight distributed to the vehicle and trailer axles.

expert reply by: Bob G