I have just about given up on removing my old, hard, cracked bushings from my rear diff on my 1970 GTO. I've beaten and banged on them, heated them with a torch (thats how I got my front bushings out), hit them with an air hammer, and so far they haven't budged, but I have managed to mangle them enough that now I HAVE to get them out. Any tricks here?? I'm painting my frame/suspension tomorrow and would like to paint the diff as well but I need those bushings out first!!