1999 - 2010 Ford F-250 Super Duty Rear Window Weatherstrip Seal, Without Trim Groove. This rear window seal fits the Super Duty models. This application goes first on the glass and is installed using the rope-in method. Made from ozone resistant EPDM rubber and from the same OE specs as the original for an authentic fit and finish. *Note. This weatherstrip will not work on the original OE sliders*