i couldnt get mine out wen i had uprated dampers,lots of hammering at them n that didnt work.i found a blow torch,warm them up just a little n they soon pop out
WD40 em leave it for a while, undo both nuts at the same time or youll cause y,self probs straight away. Knock em out together, e.g. hit 1 once then hit the other and vice-versa till out. Should be a bit easier !!!!