Putting too much weight on the back end of the trailer can make for unsafe traveling conditions. Whether you’re using your trailer in Tacoma, Vancouver or Spokane, here is one way to tell if the tongue weight on your trailer is exerting too much pressure on your tow vehicle.
While the trailer is empty connect it to an empty tow vehicle. With a ruler or measuring tape, measure the distance from the ground to the top of the spinner on the couplers. That’s called the “handwheel” and you tighten it to clamp the coupler on the hitch ball.
Now load the trailer and once again measure the distance from the ground to the top of the handwheel.
Take the unloaded distance and subtract loaded distance.
If you have an inch or more then there is enough tongue weight. If the change was less than one inch, you should reload the trailer and put more weight in the front half.
You should strive for a level trailer. If the trailer is tilted forward, then you have too much weight on the tongue.