1988 Dodge Pick-up Truck Ring and Pinion Set D350 - RWD - Dana 70 Rear - Ring and Pinion Set - 3.73 Ratio - 5/8 in. Offset - 29 Spline Pinion - Fits 3 Series 4.10 & Down Carrier - Rear guaranteed to replace your current 1988 Dodge Pick-up Truck Ring and Pinion Set D350 - RWD - Dana 70 Rear - Ring and Pinion Set - 3.73 Ratio - 5/8 in. Offset - 29 Spline Pinion - Fits 3 Series 4.10 & Down Carrier - Rear. 1988 Dodge Pick-up Truck Ring and Pinion Set comes new OEM 1988 Dodge Pick-up Truck Ring and Pinion Set aftermarket new 1988 Dodge Pick-up Truck Ring and Pinion Set of remanufactured 1988 Dodge Pick-up Truck Ring and Pinion Set D350 - RWD - Dana 70 Rear - Ring and Pinion Set - 3.73 Ratio - 5/8 in. Offset - 29 Spline Pinion - Fits 3 Series 4.10 & Down Carrier - Rear.