Jim,
You asked if "anyone do something to tighten up the fit?"
so I offered readers the off-the-shelf J-Bolt idea as an additional
method.

I have 5 glider trailers and several other equipment trailers.
I use a variable hitch ball unit that I can quickly move up or down
with a "quickie" pin.
The anti-rattle J-bolt stays in place underneath in the main 2"
receiver.

Your Do It Yourself welding method works as well. Indeed, it is
brilliant!
Hartley's nails in the receiver idea didn't sound so appealing if they
worked loose and fell on the road, but it's yet another good and fast
DIY idea!


Burt
Marfa Gliders Soaring Center, west Texas USA

PS A student of mine decided to "air up" all my pneumatic tires on
my aircraft, trailers, bikes, cars, hand-trucks, O2 carts, etc.
We lost count after 110 as we were laughing so hard about the amazing
number. Thank goodness for "slime"!