Taurus and Sable
WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
These seats have a 60/40 split backrest. The 60 percent has a fold down armrest. Each backrest is held in place at the top with its own striker attached to the package tray sheet metal and a latch attached to each backrest frame.