I decided to take the top off and see if this would work. Those 2 set screws were a pain in the
to loosen up! anyway, here are 2 more photos to show what it looks like. I did change 2 things from what I had. 1) the 1/8" pin is to small, 3/16" was a better fit. The Allen plug I used on the other end was not a good idea. So, what I ended up with is a 12 MM socket pressed onto that end. Being an aluminum shaft, it worked like a champ. The1/2" size for the shaft is perfect, you can not go any bigger. Silver Goose, I think your socket idea sounds great