A weight distribution hitch distributes the weight nearest to where a trailer connects to a towing car to prevent an imbalance in weight from causing an accident. The hitch minimizes the danger caused by a weight imbalance by distributing the weight that is pushed on the rear axle of the towing vehicle to the front axle and any axles with which the trailer is built.
A car used for towing has a specific weight distribution rating. If the weight placed on it exceeds the limit, serious balance issues could occur. A weight distribution hitch helps increase the effectiveness of a towing car, as it prevents a trailer from dipping due to excessive weight. Sudden imbalances during a drive can be disastrous, as a situation in which braking is necessary can lead the trailer to pitch and sway, causing a driver to lose control.
Trailers carrying lighter loads can be securely driven using a simple weight carry hitch, but a careful balancing of weights is still necessary. It is recommended that a driver use a weight distribution hitch if the weight of the trailer exceeds 50 percent of the weight of the towing vehicle. Depending on local laws, there are certain trailer weight limits where a weight distribution hitch is legally mandated.