Ball Joint Nightmare - chapter 2; you might want to read the complete thread the address below starts on page 2 of the thread.
Beating on the side of the Control Arm to release the Ball Joint from the Taper 2nd page
http://www.peachparts.com/shopforum/showthread.php?t=173149&page=2
I have never tried the above mentioned method. If it works please post the results.
Somewhere in our DIY sedtion one of the members tested several tools to press The Ball Joint off the Sindle. One of the Tools that worked was one he already had. He called it a Pitman Arm Puller but the one he used is slightly smaller than a Pitman Arm Puller; often labled Tie Rod puller see Pic.
He said it fit well.