Ball joint socket size and where to purchase?

Yep which equals 1 52/64......7/64 difference, call that 1/8" difference. I'll wait to see an actual measure on the Proto.
Yeah....I dug my 1 59/64 socket out of the bottom of the tool box and tried it on that small ball joint in the pic. It was sloppy as all get out, and I remembered your analogy of the Ho on payday and busted out laughing! Then I thought about it too much and felt kinda dirty and went and washed my hands!

:rofl: