Class I Ball Mount and Hitch Ball Dimensions

Updated 08/10/2017 | Published 08/09/2017

Products Featured in This Question

Curt Class I Drawbar - 2-5/8" Rise, 3-1/4" Drop - 7-1/4" Long - 2,000 lbs

(2327)

$24.33

1-7/8" Hitch Ball - 3/4" Diameter x 1-5/8" Long Shank - Chrome - 2,000 lbs

(4010)

$15.55

2" Hitch Ball - 3/4" Diameter x 2-1/8" Long Shank - Chrome - 3,500 lbs

(4010)

$11.29

Curt Hitch Pin and Clip for 1-1/4" Hitches - 1/2" Diameter x 2" Span

(2977)

$4.13

Question:

I am interested in Class I ball hitch, 2-inch ball. Is 3/4inch ball hole sufficient? It seems that larger would be better, and that 3/4 is under-sized for a load of up to 2000 lbs. What is the recommended ball shaft diameter? From there I should search for a compatible ball hitch. Right?

asked by: Joe

Expert Reply:

To choose a Class I ball mount, each of which are going to fit in a 1-1/4 inch receiver, you will need to know the drop or rise you need by measuring from the ground to the top of your receiver and again from the ground to the bottom of your coupler.

If your hitch is higher you would want a ball mount with drop; if your coupler is higher, you would need rise. For example, if your hitch was 3" higher then the Curt Class I # C45022 would be a great choice. You would also need a pin and clip # F-4 to secure the ball mount to your receiver.

As for hitch ball hole dimensions, each of our Class I ball mounts has a 3/4" hole diameter, which is not undersized for a 2,000 lb load. Depending on your coupler, you would then need to choose either a 1-7/8" hitch ball such as # C40001 or a 2" hitch ball such as # C40018.

I have added a link to a help article on ball mounts for you to take a look at.