Tailgate gas strut pedestals

Hi, I have just changed the gas struts on my P38, what a simple task, but find that the pedestal with the ball joint on the end is rusted and in one case does not have any ball left. Can anyone advise as to what these are called, who sellls them and what is the part number?

Thanks I am getting fed up with a bruised head!

Spigot gas strut. ALR8064 upper £10.70 each. ASR2648 lower £1.90 each. Rimmers. Think the upper one must be solid gold.