This is the Rear Window Seal / Backlite Seal.   1977 onwards Silver Wraith II, Shadow II, T-series, T-2 Long wheel base models (Rear window is much smaller than the front) 1980-1986 (VIN...

1966-1980 LONG Wheel Base Shadow, Silver Wraith II Models The Weatherstrip Package comes with the following items. All items are labeled as to what they are. Door Seals (all 4 doors) (LWB Set)