In the video, he simply slides the outer window wiper [spoiler][/spoiler]into the door and it is not held in by anything other than the channel….he also identified the correct part, which is NOT the part that Classic Industries sent me- he said that the one I have will not work in these trucks. I am going to see if I can find the right part.
I think that the goop that was mentioned in the above post is not adhesive- rather, it is rubber lube to help it slide into the channel.
At 19:15 minutes into the video, he discusses the outer window wiper:
Jerry Kassis Door DisAssembly - part 1