Why Does a Travel Trailer Need to be Level?
After you have pulled up on blocks, go back and check your bubble level again. Is your trailer still tipping to the left or right? You may need to add more blocks on one side or the other. It may take a few tries until your trailer is level left to right, but don't sweat it. Even this trial and error is all part of the camping experience.
To stabilize your tongue jack, place a tongue jack stand under the tongue jack. Then use the handle on your tongue jack to crank the jack to the ground. The weight of your trailer's tongue will be here after you pull your tow vehicle away. Remember that your trailer tongue needs to lift completely off the ball (high enough that your vehicle can pull forward without catching on the ball).
After your tongue jack is stable, unhitch the trailer from your tow vehicle. Then, simply move your vehicle out of the way.
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