I find it hard sometimes to read these types of post as I've been in similar positions, and helped plenty of others in similar predicaments where possible. It does prove the wealth of observations and techniques on how folks do things and how sometimes these cars push us to the edge of our limits.
So the member removed the item in the end, but was no better off in the long run based on the fact of the joint being passed it, surely you don't save time leaving the arm in situ to replace the bush ?
A few more bits to undo, then its off and can have all kinds of techniques applied to remove even the worst of bushes - Just my observation and not looking for praise or recognition, just simply stating something obvious !
But here is the bottom line for jobs like this -
https://www.youtube.com/watch?v=QJHUbtR0yI8