I just finished installing mine. I fit the rubber to the truck and made sure it was all the way over the edge then fit the glass into the opening using plenty of glass cleaner for lubericant. Once the glass was in I used the spray bottle again and and worked the lock strip in with a plastic putty knife. I know there is a tool for this but the knife worked pretty good. Side windows are next, they look tough. Make sure the lock strip is to the outside.

If you never tell a lie, you never need to remember what you said.