QUESTION FOR UCA BALL JOINT SEPARATION

I am trying to separate the upper ball joint. I cannot fully bolt the control arm into the frame as I've found that the A arm is somehow spread. I've bolted in one side and given new, never driven ball joint some pretty good whacks with the fork. "I'm New" so just checking, I don't have to use a socket first, the 1 59/64's ball joint is threaded into the arm only, not the spindle, correct? I did not use any break free, didn't figure I'd need to. Any ideas?