2006 GMC Yukon XL 2500 Ring and Pinion Set 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 4.56 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear guaranteed to replace your current 2006 GMC Yukon XL 2500 Ring and Pinion Set 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 4.56 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear. 2006 GMC Yukon XL 2500 Ring and Pinion Set comes new OEM 2006 GMC Yukon XL 2500 Ring and Pinion Set aftermarket new 2006 GMC Yukon XL 2500 Ring and Pinion Set of remanufactured 2006 GMC Yukon XL 2500 Ring and Pinion Set 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 4.56 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear.