Brand New Rear Hatch Upper Glass Hinge Set Both Rear Left & Right Hinges Included Fits 2008-2012 Ford Escape Fits 2008-2012 Mercury Mariner Replaces Ford 8L8Z-78420A68-C, 8L8Z-78420A68-D The original hinges tend to fade, rust, or corrode over time and can actually break. Once they start to corrode, it is only a matter of time until opening the rear glass is difficult and potentially dangerous. Inspect and replace your hinges at any sign of corrosion.