Most are stuck to the stud Pete.
Give it a good soak with releasing fluid and just keep working away.
In extreme cases I have had to use a puller, however if you enter from the inside with a long tapered cold chisel between the chassis leg and the top of the compression rod bush, then you should get it to move by about 1mm.
After that, just keep persevering away and keep plenty fluid on it.
Alex.