Reply to "rear side window installation"

Once the assembly is out of the car, the glass can simply be pushed out of the frame with your fingers. Fiddling with string etc to install the frames is a waste of time with these little window assemblies, especially since you can reach through the area usually blocked by the glass, and manipulate the gasket edges by hand. The glass is pretty expensive to replace, so I suggest wrapping them in newspaper & putting them away somewhere safe. In the event of your selling the car or otherwise passing it on, the new owners will probably want the removed parts.