Peel the rear door opening weatherstrip from the door opening pinch-weld
flange. Use 3M Release Agent or the equivalent at the bottom ends
of the rear door opening weatherstrip if needed.
Apply weatherstrip adhesive
into the channel on the rear door opening weatherstrip. Use GM P/N 12345098
or the equivalent.
Start at the corners and align the rear door opening weatherstrip to
the door opening pinch-weld flange.
Align the channel on the rear door opening weatherstrip with the
pinch-weld flange.
Important: When installing the rear door opening weatherstrip, ensure that the
corners have not pulled away from the body.
Press the weatherstrip into place. If you are reinstalling the original
weatherstrip, use GM weatherstrip adhesive GM P/N 12345097
at the bottom ends of the rear door opening weatherstrip in order to retain
the weatherstrip to the body.
Install the retainers
in the ends of the rear door opening weatherstrip into the holes in the floor
panel.