Thanks Big John,
There are several listed which is a great start I have emailed them for the correct fit to order.
Interestingly, even the prop shaft repairers say they cannot get hold of the right item themselves. If it eventually proves good, I will pass on the details to those I have asked to do the refurbishment.
Jaguar parts dept wont even provide a part number for it and obviously don't sell it as a separate item.
Thanks a lot, I will let you know how I get on.
Regards
Peter