Originally Posted by asmallwood
I think I may be talking about button head pop rivets. Where did you get yours? BTW, I tried posting a photo but am having some trouble.
The window hinge is attached to the window sash (the metal frame around the glass) with small head 1/8 inch "buck rivets".
The rivets sheared simply because the two halves of the hinges were not properly mated, before you lowered the window.
That hinge must be "perfectly" match, or you will shear those rivets every time you try to reinstall that rear window.
Hopefully, your window is the original.