Manual says remove steering rack first.
Q1. Anyone changed them whilst rack still on chassis?
Q2. Are they threaded both ends?
I Changed both track end balljoints. One side easy. Kept tracking where it was. Other side was an absolute pig. The adjuster nut would not release. Finally won the day using a blowtorch but l lost my settings; the new track end balljoints had slightly longer housing so l needed to realign tracking. But coming to the end of thread by balljoint and still out loads.
Anything to do with new radius rod bushes l fitted recently? I had some welding around the hole same side.