Chris,
Here is what not to do...don't push the window "home" in the frame. Either measure where they go so they sit properly against the division bar weatherstrip and mark them, or make a jig so you can't shove them in too far. Chevy Duty say's soak the tape overnight in any motor oil and install with fabric side to window. I tried this and it sure didn't work for me. My tinted replacement glass was exactly the same
size as the factory glass and it barely seats in the frame when positioned against the division strip. Let me know how you do...I am going to try dry setting tape and urethane window adhesive next.
Stuart