When travelling with a trailer, strong cross winds and wind buffets from large trucks and buses can result in unnerving trailer sway. A sway controller is designed to be used in conjunction with a WDH and prevents trailer sway by retarding the pivotal movement between the tow hitch and the trailer. There are two models, the Friction Sway Controller and the Dual Cam Sway Controllers.
Please Note - if your trailer sways without the external forces mentioned above, check that your trailer is loaded and set up correctly. Sway controllers should not be used to counter sway caused by trailer incorrectly loaded or setup.
Disclaimer - Please note these are only tips and suggestions. Further professional advice must be sought before towing.