Need info on s2 axle flanges

[orignalS60]

I have a question about the axle flanges/
stubs that sit in the front & rear diffs in the
s2. Are they identical front and rear or are
they not interchangeable. I’m looking at
buying these from the driveshaft shop
upgraded stubs:


http://www.driveshaftshop.com/import...erential-stubs

[quattrito]

Not identical, didn’t rear ones have bolt in the middle?