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What is the Difference Between a 2-5/8 Inch and a 2-5/16 Inch Trailer Ball


what is the size difference between a 2-5/8 and a 2- 5/16 trailer hitch ball?

asked by: Will D

Expert Reply:

There are three sizes of trailer balls, a 1-7/8 inch, a 2 inch and a 2-5/16 inch. In the past, I have heard some refer to the 2-5/16 ball as a 2-5/8, but there is no such animal as a 2-5/8 inch trailer ball. At one time, a truck/trailer rental company had a proprietary 2-1/8 inch sized ball, which is now obsolete.

I have linked an FAQ on trailer hitch balls.

expert reply by: Mike L

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