I'm trying to replace the RF CA, but the so-call "mechanic" that put on the CA for the prev. owner didn't use a castle nut and overtightened it. So far, I've tried 1) pickle forks, 2) ball joint separating tools (sheared the tool's hinge shaft, or w/e it's called, x2), and 3) hammering on the stud with a 5lb hammer until the top of the stud is like forged. It still won't budge.
I'm out of idea, can anyone please help me out with this?
