If the bearing has spun inside the housing, then it may be impossible to remove as it may have made a "ridge" which is not allowing it to slide out.
Once you get the clutch off, you could try this to remove the case from the crank:
http://www.buggiesgonewild.com/gas-e...se-halves.html
I assume it will work OK on a 2pg- but if the case is damaged, you may just need a new engine.