How to Select a Trailer Hitch
Classes, receiver sizes, and matching hitch ratings to the trailer.
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A loaded ball mount ships with the hitch ball already installed. Confirm the ball diameter matches your coupler, verify the nut torque, and treat the combined rating as the limit — not the hitch class alone.

One box, one shank size, one ball diameter, one drop. That is convenient when your coupler size is already known. It is a poor shortcut if you have not measured drop or confirmed the coupler stamp.
Factory-installed balls still need a torque check per the instructions. Inspect for a worn ball face and a tight nut before each season. Swap the ball only when the mount hole and rating support the new diameter.
Confirm ratings and fit notes on each product page before you order.


Official clips from @curtmfg. If an embed stalls, use the YouTube link under the video.
Classes, receiver sizes, and matching hitch ratings to the trailer.
Watch on YouTube