Treated the Old Girl to some shiny new mirrors. They came with the arms tight against the back of the mirrors to fit in the box. I haven't tried to fit them yet but gently trying to pull the arms into position and turn the threaded bit which goes into the door to the right angle tonight and they won't budge. Do I need to loosen the smaller nut at the base of the arms to allow them to move? Cheers T.A.
Yes they are stainless, as for the threads thanks for the warning. They came from VW Heritage so I hope they will be ok.