They are probably just attached with a nut. So remove the 1 7/8 ball, and
get a 2" ball with the same size threaded portion.

wrote in message
oups.com...
I am looking for a trailer dolly. But all the trailer dollies that I
see in Amazon.com come with 1-7/8" hitch ball instead of 2" hitch ball
that my trailer needs. Can I replace the 1-7/8" hitch ball that comes
with the trailer dolly with a 2" hitch ball?

Thanks in advance.

Jay Chan