Well, obviously it was "rocking" before as well and it did work alright, but who knows what will happen when I start putting things together. :-)
I have now ordered a new inner race, hopefully I will get it tomorrow or the day after.
If it fits ok I'll see if I can get the clutch working properly, if not I'll propably bid on the used 4-spring.
I have cleaned the friction plates thoroughly, should I put a little bit of oil on them before assembly?