Yep, got it off now and put the new ones on.
However, I now have a new problem. Because of where the inboard ball joint is, I can't get anything more than a spanner on it. I have tightened it up as far as it will go (RFT + some swearing) but there seems to be a small gap around the edge of the nut still. Is this tightened properly?
Do you guys think it needs to be tightened some more? If so, I'll pop to Halfords to get a universal joint adapter so I can use some extensions and tighten it from above.
I would take a picture, but I can't really manage to wangle my arm into the right place.