Matt;

It is a good idea to have options. So, if someone else has to come get you
with their car, they are likely to have a 1 7/8" or a 2" ball.

It would be easy to replace the hitch on the trailer with either a 2" or 1
7/8" . These are commonly available, just bolt on. Then sell the 50mm ball.

For little money, a welding shop could make a custom mount---50mm ball with
1" shank into 2"x 1/4"x 1/4" square tube, welded onto 1 1/4 " tubing stub
and insert into your receiver.

50mm hitch on 1 7/8" ball is just a little sloppy--probably a minor factor,
but best to change something.

--
Hartley Falbaum

"mattm" wrote in message
...
OK, so a proper fit between the hitch and ball is important, too.
What do I do with
my Cobra trailer that fits a 50mm ball? I actually *do* have a 50mm
ball but it has a
1" shank. However, my car has a 1.25" hitch receiver (factory
installed), and I can't
find any fittings that will take a 1" shank. For the moment I'm just
using a 1 7/8"
ball (47.6mm) since the trailer just goes from the tiedown to the end
of the runway,
and I've heard the horror stories of using a 2" ball (50.8mm). Any
ideas that don't
cost an arm and a leg (such as "buy a new car")?

-- Matt