1997 Chevrolet Express 3500 Ring and Pinion Set Express 3500 - RWD - Dana 80 Rear - Thin Ring and Pinion Set - 3.73 Ratio - Fits 4 Series 4.10 & Up Carrier - Rear guaranteed to replace your current 1997 Chevrolet Express 3500 Ring and Pinion Set Express 3500 - RWD - Dana 80 Rear - Thin Ring and Pinion Set - 3.73 Ratio - Fits 4 Series 4.10 & Up Carrier - Rear. 1997 Chevrolet Express 3500 Ring and Pinion Set comes new OEM 1997 Chevrolet Express 3500 Ring and Pinion Set aftermarket new 1997 Chevrolet Express 3500 Ring and Pinion Set of remanufactured 1997 Chevrolet Express 3500 Ring and Pinion Set Express 3500 - RWD - Dana 80 Rear - Thin Ring and Pinion Set - 3.73 Ratio - Fits 4 Series 4.10 & Up Carrier - Rear.