Technical department at ZF are going to ring me back later, so hopefully will get the definitive answer on what if anything is interchangeable
Also so far have had one company confirm that it is not possible to repair the crack on the valve body, so the hunt would be on for a second hand unit if I was able to use the rest of the DMY.
Seems silly to not use the mechanicals from the recently refurbished box if possible.
Would be interesting to get a list of other vehicles that used the same box around that time to broaden the search. I think jag, land rover & BMW used the same box?
Yes am on RS246 and Audisrs amongst others, had a B5 RS4 for many years, great car and really loved it.