2010 GMC Sierra Ring and Pinion Set Sierra 2500 HD - 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 5.13 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear guaranteed to replace your current 2010 GMC Sierra Ring and Pinion Set Sierra 2500 HD - 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 5.13 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear. 2010 GMC Sierra Ring and Pinion Set comes new OEM 2010 GMC Sierra Ring and Pinion Set aftermarket new 2010 GMC Sierra Ring and Pinion Set of remanufactured 2010 GMC Sierra Ring and Pinion Set Sierra 2500 HD - 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 5.13 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear.