In other news I was shocked to find two new old stock bumper mounting bolts like the one I broke listed on eBay. It's amazing what you can find when you know the part number. Now if there were someplace I could send those four giant bumper shocks for overhaul I'd be really happy.
Let me know what you find out about rebuilding the bumper shocks. One of my front bumper shocks puked its fluid decades ago and will be pretty useless whenever it gets used next.