1993 Ford Crown Victoria Ring and Pinion Set RWD - Ford 8.8 in. Rear - Ring and Pinion Set - 4.56 Ratio - 30 Spline Pinion - Requires Notched Cross Pin Shaft - Rear guaranteed to replace your current 1993 Ford Crown Victoria Ring and Pinion Set RWD - Ford 8.8 in. Rear - Ring and Pinion Set - 4.56 Ratio - 30 Spline Pinion - Requires Notched Cross Pin Shaft - Rear. 1993 Ford Crown Victoria Ring and Pinion Set comes new OEM 1993 Ford Crown Victoria Ring and Pinion Set aftermarket new 1993 Ford Crown Victoria Ring and Pinion Set of remanufactured 1993 Ford Crown Victoria Ring and Pinion Set RWD - Ford 8.8 in. Rear - Ring and Pinion Set - 4.56 Ratio - 30 Spline Pinion - Requires Notched Cross Pin Shaft - Rear.