2004 GMC Yukon XL 1500 Differential Carrier 4WD - GM 8.6 in. - Yukon Grizzly Locker - 2.73 Gear Ratio And Up - 1.78 in. Bearing Journals - - Rear guaranteed to replace your current 2004 GMC Yukon XL 1500 Differential Carrier 4WD - GM 8.6 in. - Yukon Grizzly Locker - 2.73 Gear Ratio And Up - 1.78 in. Bearing Journals - - Rear. 2004 GMC Yukon XL 1500 Differential Carrier comes new OEM 2004 GMC Yukon XL 1500 Differential Carrier aftermarket new 2004 GMC Yukon XL 1500 Differential Carrier of remanufactured 2004 GMC Yukon XL 1500 Differential Carrier 4WD - GM 8.6 in. - Yukon Grizzly Locker - 2.73 Gear Ratio And Up - 1.78 in. Bearing Journals - - Rear.