I need help getting the ball joint out of the hub. I have tried hammering it out but it doesn't budge. I just tried using the attachments and a vice like it says in the service manual and the vice snapped in two, so I am out of ideas.

The balljoint is bad and I can't tighten the nut to cotter pin it, so I need to replace it but it won't move at all. The service manual also says that there is a 40mm circlip, but I can't find it. Does anyone have any suggestions to get this stubborn son of a bitch off so I can put my car back together?