One of the rollers on my passenger front window is missing all of the plastic roller, only the metal central core remains. This causes the window to be misaligned as the roller core jumps in and out of the track.

I ordered the replacement rollers from classic (I planned to replace them all since I have to do one anyway), but can't figure out how to install them. They look to be riveted in place. I could probably drill/grind the old one out, but how do you go about installing a new one? Special tool or just a hammer and punch?

Also, is there a special tool to remove the metal mounting hardware from the actual window glass - it looks like there should be a wrench with 2 prongs to grab the little holes on the window hardware.