1989 Chevrolet S10 Truck Ring and Pinion Set 4WD - GM 7.5 in. & 7.625 in Rear - Ring and Pinion Set - 4.56 Ratio - Fits 3.23 & Up Carrier - Rear guaranteed to replace your current 1989 Chevrolet S10 Truck Ring and Pinion Set 4WD - GM 7.5 in. & 7.625 in Rear - Ring and Pinion Set - 4.56 Ratio - Fits 3.23 & Up Carrier - Rear. 1989 Chevrolet S10 Truck Ring and Pinion Set comes new OEM 1989 Chevrolet S10 Truck Ring and Pinion Set aftermarket new 1989 Chevrolet S10 Truck Ring and Pinion Set of remanufactured 1989 Chevrolet S10 Truck Ring and Pinion Set 4WD - GM 7.5 in. & 7.625 in Rear - Ring and Pinion Set - 4.56 Ratio - Fits 3.23 & Up Carrier - Rear.