1979 GMC Pick-up Truck Ring and Pinion Set K1500 - 4WD - Dana 44 - Standard Rotation - Ring and Pinion Set - 3.73 Ratio - 26 Spline Pinion - Fits 3 Series Carrier - Front guaranteed to replace your current 1979 GMC Pick-up Truck Ring and Pinion Set K1500 - 4WD - Dana 44 - Standard Rotation - Ring and Pinion Set - 3.73 Ratio - 26 Spline Pinion - Fits 3 Series Carrier - Front. 1979 GMC Pick-up Truck Ring and Pinion Set comes new OEM 1979 GMC Pick-up Truck Ring and Pinion Set aftermarket new 1979 GMC Pick-up Truck Ring and Pinion Set of remanufactured 1979 GMC Pick-up Truck Ring and Pinion Set K1500 - 4WD - Dana 44 - Standard Rotation - Ring and Pinion Set - 3.73 Ratio - 26 Spline Pinion - Fits 3 Series Carrier - Front.