1993 Ford F Series Trucks Ring and Pinion Set F-250 - 4WD - Dana 60 - Reverse Rotation - 3.73 Ratio - Reverse Rotation - Front guaranteed to replace your current 1993 Ford F Series Trucks Ring and Pinion Set F-250 - 4WD - Dana 60 - Reverse Rotation - 3.73 Ratio - Reverse Rotation - Front. 1993 Ford F Series Trucks Ring and Pinion Set comes new OEM 1993 Ford F Series Trucks Ring and Pinion Set aftermarket new 1993 Ford F Series Trucks Ring and Pinion Set of remanufactured 1993 Ford F Series Trucks Ring and Pinion Set F-250 - 4WD - Dana 60 - Reverse Rotation - 3.73 Ratio - Reverse Rotation - Front.