I have just taken the gearbox off my RS to change the release bearing but now I am starting to think its an IB5 Gearbox from a Mk5 Escort diesel.

The part number on the casing is 96WT - 7F096 - EA IV/1

Can anyone help in trying to identify it please as i just want to make sure i get the right bearing.

Also how different is an IB5 to the standard BC box - i.e gaskets etc etc

Pic attched