Ball joint replacement

Soak it in WD40 or PB Blaster or something similar and then wait a day. If it doesn't loosen up after than you'll probably have to heat it up to break it loose.
Yep.
Flame wrench.

FYI
Sounds like your gonna be needing some of these.
For your consideration.
[FOR SALE] - Upper Control Arm Adjuster Mounting Bolts & Washers. 62-76 Cars.




Torches 001 (Small).JPG