Crew cab shown, others similar.

1. Open the front and rear door, as necessary.
2. Remove the auxiliary weatherstrip by pulling the weatherstrip (1) from the roof pinchweld flange (2).

1. Install the auxiliary weatherstrip to the roof pinchweld flange by pressing the weatherstrip (1) onto the roof flange (2), until it is fully seated.
2. Close the front and rear door, as necessary.