Loading a trailer incorrectly, especially if you add too much load to the back end can result in your trailer “whipping.”
Trailers should be loaded 60 percent in front of the midline and 40 percent in back. The more askew your load is, the lower the speed will be at which you’ll feel the effect.
What happens is the trailer acts like a lever which is applying a powerful lifting force on the rear of the tow vehicle. This can cause the traction to disappear from the back axle. The weight distribution of the whole rig is thrown off.
The result is whipping. If you do feel the effects of a trailer whipping DO NOT apply the brakes. Ignoring the brake is going to be tough. Hitting your brakes will take even more weight off the rear wheels and intensify the situation. Let off the gas and hold the steering wheel straight ahead. Hopefully, you will get everything under control and you can pull over and re-adjust your load.
For all the questions you might have call Trailer Boss: in Olympia 360 923-2135, in Rochester 360 273-7892, and in Marysville 425-903-4985.