The gear has a drift pin that holds it in place. I would be taking the gear off and pulling that sucker apart just to see what HAD happened. Does the shaft still turn in the housing? There is little that CAN go wrong with the primitive way them things are put together. Just a shaft and sleeve bearings is all that is ni there.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist