RE: Sway control bar
You should tighten up the arm as far as it will go and then back it off till it is parallel with the tongue (horizontal). That arm is not an adjustable control but an on/off lever. The adjustment of the sway control tension is done with the small hex head bolt below the arm. It is usually adjusted at the factory for most trailers and will not have to be redone. If you feel you need to adjust it, turn it in 1/4 turn increments as a little bit does a lot. These instructions I am giving you are not my own. They are almost word for word from the manufacturers instructions. By doing it this way, you will have consistancy in your tension on the bar and will not be guessing each time you hook it up.
Barney