Revo Hybrid Diff Assembly Instructions?

Is it possible to fit diffs other than the Mugen diff in the RCM hybrids? I really prefer Losi diffs, just curious if they're usable. Figure since we're on the topic of the hybrid diffs and the question has been answered, this is one worth asking.

I have additional question about V3 diff.
The plastic inner case is made for 6mm output shafts.
I know Mugen diff case has 5mm bore for output shaft. I believe Caster inner diff case has 5mm bore, too. Any direct replacement of the inner case for 6mm shaft?

I think Xray diff might be the cure.

Looking at the pic of the different parts of the Hybrid Diffs, it really looks like the input shaft is 8 mm with the tip machined to accept the Revo shaft. Im sorry I cant be 100 sure but it really looks like you need a 12X8 bearing like magman said.