Trailer Hitch Balls
Trailer hitch balls have a external thread shank, round top pivot ball, lock washer and nut. Popular ball sizes are 1 7/8 inch, 2 inch, and 2 5/16 inch.
Generally, hitch ball thread shank diameters are 3/4 inch for class 1 and 2. 1 inch diameter for class 3. Ball sizes and shank diameter determine TC towing capacity.
For use when a trailer ball shank size is smaller than the hole diameter of the ball mount.
For safe, comfortable towing, the trailer should be set up to tow on a level plane. Sometimes a trailer's tongue is higher or lower than the ball mount on the vehicle, and a ball mount rise or a drop is required to level the trailer.
TC = Towing Capacity (in lbs.) / GTW = Gross Trailer Weight (in lbs.) / WC = Weight Capacity (in lbs.) and TW = Tongue Weight (in lbs.) should always be considered when selecting a ball mount or draw bar.
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