Hi Bob,
Oh yes I recall that now. There's no way that it could've worn down that quickly. It will take years for that to happen again.
The shaft must be long enough to protrude inside the thrust bearing. I would disengage the clutch via the primary lever and then grab hold of the shaft and cone area and see if there is much sideways wiggle movement. Once we've ascertained what's going on there we can then proceed I guess.
Cheers,
BB.
