Choosing the right trailer hitch ball mount is about matching the ball size, shank diameter, and rise or drop to your truck and trailer. Most 1-1/4 inch receivers are fine for light duty loads, while 2 inch receivers handle everything from small boats to car haulers. Measure the coupler on your trailer before you buy: a 2 inch ball is the most common, but 1-7/8 inch and 2-5/16 inch balls are used on many lighter and heavier trailers. The drop you need depends on the height difference between your receiver and the trailer coupler when the trailer is level. Getting these three numbers right makes hitching up easy and towing safer. If you are not sure which combination fits your setup, browse the selection at CampX USA Inc https://campxusainc.com/ to see load ratings and sizes side by side.