2004 GMC Sonoma Ring and Pinion Set 4WD - GM 7.5 in. & 7.625 in Rear - Ring and Pinion Set - 3.73 Ratio - Fits 3.23 & Up Carrier - Rear guaranteed to replace your current 2004 GMC Sonoma Ring and Pinion Set 4WD - GM 7.5 in. & 7.625 in Rear - Ring and Pinion Set - 3.73 Ratio - Fits 3.23 & Up Carrier - Rear. 2004 GMC Sonoma Ring and Pinion Set comes new OEM 2004 GMC Sonoma Ring and Pinion Set aftermarket new 2004 GMC Sonoma Ring and Pinion Set of remanufactured 2004 GMC Sonoma Ring and Pinion Set 4WD - GM 7.5 in. & 7.625 in Rear - Ring and Pinion Set - 3.73 Ratio - Fits 3.23 & Up Carrier - Rear.