Hi, can you just change the stub axle's on a cosworth diff to the smaller flange size 100mm instead of 108mm, or are the internal splines different. Thanks Alan.

i dont think so, the drive shafts on the cossie are bigger and stronger, but not sure whether this effects the diff splines, are the cv's the same diameter?

No, the CV's match the flange. Cossies have the "big" 108mm joints, pretty much everything else has the 100mm ones.

Not sure about swapping the stubs over, I don't think that will work though. Liam on here will know.

I can now answer my own question, because i have just done it, you can swap the 100mm from the 108mm ones, provided you use the one's off a Granada/ Scorpio with a LSD fitted ok, thanks for the replies.