I had a set 40 something years ago, but in between, I bought one those 3 ball system but I pulled a uhaul from this address to Pagosa Springs, Co. I can't nor my buddy John could not get the 2" ball off the pin. Also the pin shows over the ball about 3/4" and I had to hold the ball up to get connected. I then started looking and found
You. Thank You. Herman