Differential Seals
WARNING: This page is about a different car, the 2003 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
For additional information on differential seals, refer to REAR DRIVE AXLE/DIFFERENTIAL - FORD 7.5-INCH RING GEAR article or REAR DRIVE AXLE/DIFFERENTIAL - FORD 8.8-INCH RING GEAR article for the rear axle, or FRONT DRIVE AXLE/DIFFERENTIAL - DANA 35 article for the front axle.