Trailer Balls

Trailer Balls Moores Custom Trailers Featured Image

After choosing the correct trailer hitch, and ball mount, it is then time for you to choose a correct trailer ball. It is imperative for you to be properly equipped when towing any sort of trailer or cargo.

Below we will provide you with the proper information in order for you to make a decision on the correct trailer ball for you and your needs

When selecting a trailer ball, keep in mind their are many factors that are crucial to consider. If you want to be safe when matching trailer balls to you ball mounts, you will need to be informed. There is no one size fits all trailer ball, each one is specific to your load and towing set-up. Keep in mind when looking for a trailer ball that factors like platform thickness, coupler size, weight ratings, and size of the hole are all important.

Trailer Balls Selection

Platform Thickness

After reading about the ball mounts we mentioned in the previous section, you will find that a ball mount provides you with platform that is either a tab or bracket. This tab or bracket allows the trailer ball to mount onto the ball mount.  These are usually mounted using a threaded shank along with a nut. In order to be safe for towing the mounting platform is required to be at least 3/8″ thick.

Hole Sizes

A typical trailer ball is mounted onto a ball mount by putting the shank of the trailer ball, inside the hole of the platform. The diameters of both the shank and the mounting hole must always match. However in order to tow properly, the ball mount hole cannot be more than 1/16″ larger than the diameter of the trailer ball shank.

Coupler Size

The coupler which is also known as the tongue. The coupler is the front section of the trailer that sits on the trailer ball. One of the most important facts to know is the coupler size. The coupler size is crucial, because it must match your trailer ball size. Your trailer will not be safe to tow unless the coupler and trailer ball match. In order to find the coupler size you can usually look at the coupler and it will be stamped on it.

Weight Rating

Regardless of what your vehicle can tow or what your trailer hitch is rated for, it is always important to make sure your trailer ball has the weight rating to match. Trailer balls with a larger diameter usually are rated for more capacity compared to smaller ones. Keep in mind the amount of weight you will be towing when you are selecting a trailer ball.  Each trailer ball must be fully capable to hand the  gross trailer weight (GTW). Make sure you find the weight you will need in order to provide the correct trailer ball which will give you a proper, safe, and convenient towing experience. Diameter of the trailer ball can directly affect towing capacity. Below is a list of ratings for each size

  • 1 7/8″ range from 2,000 lbs to 3,500 lbs.
  • 2″ range from 3,500 to 10,000 lbs
  • 2 5/16 ” range from 6,000 to 30,000 lbs
  • 3″  maxes out at 30,000 lbs.

Torque Specs

Many people believe that simply turning the nut of the trailer ball until its tight is sufficient. This however, is not the case. It is important to make sure your trailer ball is properly torqued. Many times customers will buy ball mounts that have a fixed trailer ball, doing this eliminates the need to torque a trailer ball. Each one of these trailer balls, that we offer have their own torques specifications. These specifications provide you with a safe and secure mounted trailer ball. Proper torque of the trailer balls will not be loosened or unsafe. We have provided you with a diagram that provides a list of  torque specs based upon the shank diameter. Using a torque wrench to ensure your trailer ball is properly torqued is the best way to provide a safe towing experience.

Trailer Ball Measurments trailer balls Moores Custom Trailers

Switch Balls

Depending on your lifestyle you may find you use more than one trailer. Like mentioned before, one trailer ball doesn’t work for every application. Thats why we have found a solution to this problem with Switch trailer balls. Switch balls eliminate the hassle of switching between trailer balls. The switch balls provide you with a shank that is constructed to accept multiple different trailer ball sizes. Built for ease-of use and convenience, switching  between multiple trailer balls is a matter of a simple “twist-on” application. No need for special tools or pins, the switch balls come with a J-Groove design to allow for a secure and safe experience. Switch trailer balls have a weight capacity of 3,500 up to 8,000 lbs depending on the diameter of the ball. Excellent for use on multiple small and midsize trailers with different coupler sizes.

Switch Ball Moores Custom Trailer Trailer Balls


There are many accessories when it comes to trailer balls, hitches and ball mounts. For trailer balls however we offer a rubber cover that provides protection against weathering when not towing. A reducer bushing will allow you to fit a smaller ball shank into a ball mount hole. Call Moore’s Custom Trailers today and find out how we can assist you in choosing the correct trailer balls.