Class III/IV hitches are Weight Carrying (WC) and also are Weight Distributing (WD) hitches depending on the vehicle and hitch specifications. Not all Class III/IV hitches are rated to do both. The hitch specifications box below will alert you to a hitch that is not rated for weight distributing use.

In order to use a hitch to its maximum weight carrying capacity, a ball mount and hitch ball of the same rating or higher is required. To use the weight distribution side of the hitch, a weight distribution system is required. All of these items are sold separately. Class III/IV hitches attach primarily to the vehicle frame. Always consult your owner's manual to determine your vehicle's maximum towing capacity.