[Moriarty]

Swung by the parts store to pick up a new one which reminded me that the "shock absorbing bushing assortment" pack I had bought previously didn't have any of the right size and shape, so I wound up using the rubber insert from an expansion plug replacement. Maybe that's why it didn't last long. Here is a pic without the bushing, and with a new replacement from the $3 expansion plug I'll be using for now.