Upper and Lower Ball Joint Replacement

I just received my 1 59/64 in. socket and it appears to be too big for the upper ball joint. It fits loose and sloppy, and I'm concerned that it will deform the ball joint. My car has 9" brakes. I just reviewed the posting responses, and I realized that I did not receive an answer regarding the socket size. My mistake for ordering the socket prematurely. What is the correct socket size?