Thanks for the replies, yes I am sure 8 speed is correct, just showing my ignorance X5Sport!
I did have to drill the nut off Leslie, and it was a lot of effort to get the original shaft out of the hub, guess that’s why it wouldn’t go back in properly. The new one just slid straight in no problem ...

Hi everyone, my first post on here.
I have had a 2010 X5 30d msport, facelift model with the 7 speed transmission. A great car which drives beautifully and has covered nearly 140,000 miles now.
I recently noticed a noisy cv joint at the rear so decided to get it sorted before the MOT. Didn't go ...