From the department of random thoughts.
The outer cv is always the same except for shaft length. Its rare to break an inner cv although they do wear causing noise.
There are 2 inner cv sizes but this is held on by a circlip.
Does this make the inner cvs interchangable between your broken one and a spare with only the shaft length to worry about?
Im looking at a spare at a wreckers but havnt gone back to see if its the small inner cv or not. If it is no worries but if its not should I still grab it leaving the inner behind. Its an hours work to get it out give or take plus the wreckers back pocket that needs filling