[heelchain]

In the back of my wagon between the inside and outside walls I found this epoxy 'muffin' filled with metal shavings. What could it have been used for and why was it behind the wall panel. Is it there from the factory by accident or is it a sign that there was some work done on the car's body? What could it have been used for? Any thoughts?

I'd post the pic I just took but my Photobucket is acting up at the moment. Just picture a flat topped muffin made from clear epoxy but filled with metal shavings.