Use the correct trailer ball for your application.

1. Trailer ball load rating

Matches or exceeds the gross trailer weight rating of the trailer.

2. Ball diameter

Matches the size of the trailer cou- pler. Most couplers are stamped with the required trailer ball size.

3. Shank length

Protrudes beyond the bottom of the lock washer and nut by at least 2 threads.

4. Shank diameter

Matches the ball mount hole diam- eter size.