1994 GMC Pick-up Truck Ring and Pinion Set K3500 - 4WD - Dana 80 Rear - Ring and Pinion Set - 4.11 Ratio - Fits 4 Series 4.10 & Up Carrier - Rear guaranteed to replace your current 1994 GMC Pick-up Truck Ring and Pinion Set K3500 - 4WD - Dana 80 Rear - Ring and Pinion Set - 4.11 Ratio - Fits 4 Series 4.10 & Up Carrier - Rear. 1994 GMC Pick-up Truck Ring and Pinion Set comes new OEM 1994 GMC Pick-up Truck Ring and Pinion Set aftermarket new 1994 GMC Pick-up Truck Ring and Pinion Set of remanufactured 1994 GMC Pick-up Truck Ring and Pinion Set K3500 - 4WD - Dana 80 Rear - Ring and Pinion Set - 4.11 Ratio - Fits 4 Series 4.10 & Up Carrier - Rear.