What Is a Trailer Ball?

A trailer ball is one of the most important parts of any rig setup. It keeps the coupling of your trailer or caravan secure while in motion, and helps you maneuver it through various angles as you tow.

It also helps prevent your trailer from bouncing loose and smashing your vehicle’s bumper. There are many different types of trailer balls available, so you’ll need to pick the right one for your application.

Ball Diameter

The ball diameter of the Trailer Ball is one of the key factors to consider when choosing a hitch. It determines how the trailer ball fits in the hole in a ball mount or bumper hitch and what size shank is needed to match. It also determines the weight capacity of the hitch.

The Trailer Ball has different ball sizes to fit various types of trailers and vehicles. These include 1-7/8”, 2′′ and 2-5/16′′. The 1-7/8′′ ball is a good choice for light-duty trailers, the 2-inch is for medium-duty trailers and the 2-5/16′′ is for heavy-duty trailers.

In addition to the different ball diameters, there are also several shank lengths that can be used with certain ball sizes. These shank lengths range from the bottom of the ball platform to the end of the threaded stem.

Another important factor to consider is the rise, which is how high the ball will sit off of its base when connected. These features are necessary to ensure that the trailer ball is firmly attached to the trailer and can handle the load.

Most trailers have a coupler that is stamped or labeled with the correct ball diameter for your vehicle. This ensures that the hitch and coupler will make a solid connection and prevent the two from disconnecting during towing.

Once you know which size of trailer ball will fit your coupler, it’s important to make sure that the weight rating exceeds the gross trailer weight (GTW) on your trailer. This will give you peace of mind and help you avoid potential damage to your truck or trailer.

A coupler is a steel glove that fits around Trailer Ball the trailer ball and holds it in place on the trailer frame. The coupler is like a claw, so it needs to be able to grip the outside of the ball and hold it in place while you tow your trailer.

There are many different hitch ball sizes and shank lengths available, so it is crucial to choose the right size for your trailer and vehicle. It is also important to choose a hitch ball that has a weight capacity that exceeds your gross trailer weight.

Shank Length

Trailer balls come in many shapes and sizes, including 1 7/8”, 2” and 2 5/16”. The best way to select the right ball for your vehicle is to measure the hole on the platform where it bolts.

This will help you determine the size of the trailer ball you need to purchase, as well as the appropriate shank length for your application. The shank length is the length of the threaded part of the hitch ball’s stem that extends beyond the mounting base. It must be long enough to fit over the base of your draw bar, but short enough to ensure that the hitch ball won’t slip out of place while you are towing.

The correct shank size is a must for any type of towing application. Choosing the wrong size could lead to your hitch malfunctioning, or worse, your trailer breaking loose from your vehicle while you are towing it.

The most important factor in selecting the right trailer ball is to choose a model with a weight capacity that exceeds your gross vehicle weight rating. This is the maximum weight that your trailer can safely pull, ignoring tongue weight. A good rule of thumb is to pick a ball that has a maximum weight capacity that is 50% or more above the gross weight of your trailer.

Shank Diameter

A trailer ball is a part of the towing system that connects the hitch pin on your vehicle to the hitch pin on the trailer. It is a critical component of safe Trailer Ball towing, so it’s important to choose one that’s the correct size for your vehicle and your trailer.

When selecting a ball, you must first match its size to the opening of the coupler on your trailer. This opening is usually stamped or labeled on the coupler, and you can use a ruler or tape measure to measure it.

Once you have found the right coupler size, choose a ball with a shank diameter that matches this hole. This is extremely important, because if the ball’s shank is too small, it will shift while you are towing and likely come loose.

Generally, smaller trailers need a small ball, while heavier trailers need larger ones. 1-7/8-inch, 2-5/16-inch and 3-inch balls are popular sizes for light-duty towing applications.

2-inch ball hits are commonly used to pull medium-sized trailers, such as boat trailers and utility trailers. They are rated for a wide range of weight capacities from 3,500 to 12,000 pounds.

Another factor you should consider when selecting a ball is the shank rise. The shank rise is how high the ball sits off the base of the ball mount, and it can help level your trailer if the rise of the hitch is not enough to provide a level tow.

A third factor to consider is the shank length, which is the length of the threaded portion of the ball hitch’s stem. It must be long enough to thread onto the draw bar mounting tab of your truck, and it must also extend beyond the thickness of the hitch platform in order to ensure a solid connection.

Finally, you should always choose a hitch with a weight capacity that exceeds the gross weight of your trailer. This will not only protect your trailer and your truck, but it will also improve the stability of your trailer while you are towing. Choosing a ball with a higher weight capacity than the gross weight of your trailer will also save you money on fuel because it will reduce the number of times your tow vehicle has to stop to tow.


A trailer ball is the component that connects a trailer to a hitch. There are many types of balls available to match different trailer needs, including smaller ones with a capacity of 2,000 pounds and larger ones with a capacity of 8,000 or 30,000 pounds. Choosing the right ball is essential for safe towing and ensuring the safety of everyone on board your vehicle.

To determine the proper size of trailer ball for your vehicle and trailer, start by looking at the coupler on your trailer. Most couplers have the necessary ball size stamped into them. You can also use a ruler or tape measure to measure the inside opening of the coupler.

Once you have this information, you can calculate the appropriate drop or rise for your ball mount. To do this, take two measurements – your hitch height (Measurement A) and the coupler height (Measurement B). Subtract the difference between these two measures to get the correct drop or rise for your trailer ball.

With your two measurements, you can easily select the right ball mount for your truck and trailer. There are three key qualifications to look for in a ball mount: it must have the right drop / rise, the correct shank size and sufficient weight capacity.

If you are going to be towing multiple trailers, it is a good idea to consider adjustable ball mounts that allow you to change the drop or rise of the ball to accommodate different coupler heights. These mounts typically feature a flip mechanism that allows you to switch from drop to rise and back again quickly for maximum versatility.

Towing is a complicated task that requires the safest possible connection between your trailer and the tow vehicle. A ball mount that is not designed for the height of your trailer coupler can cause serious problems. To ensure you are choosing the right ball mount for your truck and trailer, follow these tips to help find the perfect product for you: