I have one of those freewheels that cannot be removed save for the destrucive method described at ParkTool's website
I managed to remove the top cone, and as I look inside my freewheel, I wonder if it would be possible to reassemble it once I remove it from the hub. Park Tool states that it's "very difficult". What's the difficulty? The many tiny bearings? That doesn't frighten me. Something with the pawls? Something else?