1979 Chevrolet Pick-up Truck Differential Carrier C10 - RWD - GM 8.5 in. - Yukon Grizzly Locker - 2.73 Gear Ratio And Up - 1.78 in. Bearing Journals - Uses LM102949/ LM102911 Carrier Bearings - Rear guaranteed to replace your current 1979 Chevrolet Pick-up Truck Differential Carrier C10 - RWD - GM 8.5 in. - Yukon Grizzly Locker - 2.73 Gear Ratio And Up - 1.78 in. Bearing Journals - Uses LM102949/ LM102911 Carrier Bearings - Rear. 1979 Chevrolet Pick-up Truck Differential Carrier comes new OEM 1979 Chevrolet Pick-up Truck Differential Carrier aftermarket new 1979 Chevrolet Pick-up Truck Differential Carrier of remanufactured 1979 Chevrolet Pick-up Truck Differential Carrier C10 - RWD - GM 8.5 in. - Yukon Grizzly Locker - 2.73 Gear Ratio And Up - 1.78 in. Bearing Journals - Uses LM102949/ LM102911 Carrier Bearings - Rear.