uj on 2002 disco

Hi
I need some advice
i have a 2002 discovery 2 and the uJ have gone on the hookes joint on the front prop

What i need to know is ,are all the UJ's the same size on the front prop shaft
I live in Bulgaria and have just spoke to a main dealer and they say the book only quotes for one joint so he does not know if they are different sizes
and as there are 3 ,and i need the back one
any help please
thanks Chris

They are the same. But if you are going to do some replacing, I'd replace the lot.

You can get some heavy GKN ones, which are more robust than the originals, and better still, have grease nipples unlike the original ones fitted in the Hookes (WTF!)

David