The ball attachment onto a hitch / hitch receiver where the trailer coupler is joined.
The distance from the center of the ball hitch or coupling to the ground while parked on a flat surface.
The removable ball hitch platform that can be slide into a receiver and normally attaches with a clip or a pin. This supports the ball hitch and connects it to the trailer coupler.
The total weight of a standard vehicle including a full tank of fuel. This does not include passengers, cargo or vehicle add-ons.
This unit is mounted inside your tow vehicle and allows the electric trailer brakes to activate at the same time your tow vehicles brakes activate. You can manually activate trailer brakes and adjust the trailer braking with this device.
A safety switch that engages the trailers brakes if the trailer becomes disconnected from the hitch while traveling.
This includes all the weight added to the BCW (base curb weight). Therefore all passengers, cargo, non-standard equipment and TW (trailer tongue weight) has been included.
The portion of the trailer tongue that attaches the tow vehicle to the hitch ball.
The weight of the vehicle or trailer without any additional cargo.
Sometimes referred to as a non-adjustable coupling system different than a ball hitch, this is a coupling platform that can be added and removed by sliding into a hitch receiver. It fastens with either a pin or a clip or in some instances, the tongue of a hitch.
Also known as unloaded vehicle weight, this is the weight of your vehicle or RV without fuel, water, supplies, passengers or other options.
A pickup truck, or light-duty tow vehicle, with four tires on one rear axle.
Hitches designed to be bolted to the vehicle frame or cross members. These hitches are Class II, III, IV and V.
The total weight of the vehicle’s axles and trailer’s axles combined. This number is normally arrived at by weighing your vehicle on a scale.
The vehicle manufacturer’s rating for the maximum weight allowed per axle.
The total allowed weight of the combination of tow vehicle and trailer/fifth-wheel, or motor-home and dinghy. This number also includes the weight of the vehicle, trailer/fifth-wheel (or dinghy), cargo, passengers and a full load of fluids (fresh water, propane, fuel, etc.).
The total combined weight of the vehicle and trailer (or towing equipment). This includes passengers and cargo.
The real actual weight of the vehicle and trailer combined. This number is arrived at by weighing the vehicle and trailer on a scale.
The weight of the trailer, fully loaded and in towing condition.
Fully loaded vehicle weight. Or BCW + CW. This includes passengers.
Your vehicle manufacturer’s total allowable weight. This includes cargo, passengers, fuel and any hitch additions.
Each hitch is rated differently by their specific manufacturer denoting the amount of tongue weight and tow weight they are engineered to handle. To make things easier, ratings are sorted into classes.
The wiring used to connect the trailer to the tow vehicle.
The hitch portion the allows the hitch bar or shank to be inserted. These are normally 1 ½ to 2 inches square.
Chains attached to the tow vehicle and connected to the trailer A-frame or tongue while towing. These are installed in the event of an uncoupling or hitch ball failure. Install in a criss cross pattern and check that they are secure each time you tow.
The threaded portion of the trailer ball.
This is a central component of a weight distribution system. They are and installed and tensioned to distribute the trailer tongue load to the tow vehicle front forward axle.
Like a shock absorber, this resists the back and forth movement caused by wind and passing vehicles.
Two axles (four wheels).
The amount of weight imposed on the hitch when the trailer is coupled. Also referred to as “hitch weight”. Tongue weight for a travel trailer can be 10-15 percent of overall weight; fifth-wheel hitch weight is usually 18-20 percent of the overall weight.
A device that bolts onto a vehicle, allowing it to be towed with all four wheels on the ground.
The amount of maximum weight the manufacturer recommends can be safely towed by a vehicle. These ratings refer to the trailer weight, not size. Some tow ratings are specific enough to referral to length. These ratings are determined by manufacturer according to several criteria, including engine size, transmission, axle ratio, brakes, chassis, cooling systems and other special equipment.
Sometimes referred to as a dead-weight hitch. This refers to any hitch used without a weight-distribution system. Some hitches have separate capacities based on use with or without a weight-distribution system.
The function of weight distribution hitches is to give you better control of your vehicle and load by spreading the trailer’s weight across the tongue of your trailer and tow vehicle, especially when you have heavier loads. This prevents jostling of your load during transit and an overall better driving experience while operating the tow vehicle. RealTruck’s weight distribution hitches are used in addition to a standard hitch.
When a trailer begins to fish-tail or moves in a side-to-side motion. This swaying is normally caused by an improperly loaded trailer (e.g. too much weight towards the rear of the trailer), or external forces like wind.