What Causes Trailer Sway Above 50 MPH
Updated 05/05/2026 | Published 05/03/2026
Question:
I have a 2013 navigator with factory tow and air suspension. Utilizing a blue Ox equalizer. Considerable trailer sway at 50+ mph. Will a sway bar alone be enough to control sway? Thank you
asked by: Brent D
Expert Reply:
Hey Brent, persistent trailer sway at around 50 mph is due to not enough tongue weight in the trailer relative to the total trailer weight. You would need the tongue weight to be between 10 and 15 percent of the total trailer weight to get that type of sway to stop.
There are other less likely reasons for the sway as well if the tongue weight is good. It can also be that the nose of the trailer is up too high or that there is a suspension component that is damaged.
Product Page this Question was Asked From
Hellwig Rear Anti-Sway Bar - 7/8" Diameter
- Anti-Sway Bars
- Anti-Sway Bar
- Rear
- 7/8 Inch Diameter
- Factory End Link
- No Drilling Required
- Mounting Hardware Included
- Hellwig
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