2001 GMC Savana 3500 Ring and Pinion Set RWD - Dana 70 Rear - Ring and Pinion Set - 5.13 Ratio - 5/8 in. Offset - 29 Spline Pinion - Fits 4 Series 4.56 & Up Carrier - Rear guaranteed to replace your current 2001 GMC Savana 3500 Ring and Pinion Set RWD - Dana 70 Rear - Ring and Pinion Set - 5.13 Ratio - 5/8 in. Offset - 29 Spline Pinion - Fits 4 Series 4.56 & Up Carrier - Rear. 2001 GMC Savana 3500 Ring and Pinion Set comes new OEM 2001 GMC Savana 3500 Ring and Pinion Set aftermarket new 2001 GMC Savana 3500 Ring and Pinion Set of remanufactured 2001 GMC Savana 3500 Ring and Pinion Set RWD - Dana 70 Rear - Ring and Pinion Set - 5.13 Ratio - 5/8 in. Offset - 29 Spline Pinion - Fits 4 Series 4.56 & Up Carrier - Rear.