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Sway is almost never a mystery. It comes down to tongue weight, load position or speed - and only one of those three costs money to fix.

A weight distribution hitch moves load off the back of your truck. Whether you need one is a number, not an opinion - and the number is on your door jamb.

Class, receiver size, ball diameter, drop. Four numbers decide whether your setup is right, and three of them are stamped on parts you already own.

If the trailer has electric brakes, something has to tell them how hard to work. That something is a controller, and how you set it decides how the rig stops.

Nearly every trailer electrical fault is corrosion or a bad ground. Knowing which wire does what turns a roadside mystery into a five-minute check.

The number in the brochure is not the number that limits you. The one that does is on a sticker inside your driver's door.

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