The lift bracket rivet is just plastic right? The center of the rivet pops out so the "fingers" can push through the hole in the glass. Once the center of the rivet is installed, your done.
I guess I should ask what vehicle your working on. My 68 Dart uses 1 plastic rivet for the lift bracket. My 73 Challenger uses a different setup.
70 RR. One pin in lift bracket. So when the fingers are through you push the center pin in correct?