Ok, I got it out. Turns out I may have caused the problem. What I did was to use a piece of pipe as a drift. Because all the pressure was just inside of the edge of the balljoint, I may have mushroomed it out whilst beating it. Today I heated the balljoint red hot from the bottom, and drove it our with a solid drift. The drift should be solid and half the diameter of the bottom of the balljoint or less to avoid what happened to me. Applying this, we'll see how number 2 goes tonight...

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1982 Mercedes-Benz 300CD
1982 Mercedes-Benz 240D - stick