1979 Ford Bronco Differential Carrier 4WD - Ford 9 in. - Yukon Grizzly Locker - 35 Spline - 2.000 in. Diameter Bearing Journals - Fits Load Bolt Dropout - Rear guaranteed to replace your current 1979 Ford Bronco Differential Carrier 4WD - Ford 9 in. - Yukon Grizzly Locker - 35 Spline - 2.000 in. Diameter Bearing Journals - Fits Load Bolt Dropout - Rear. 1979 Ford Bronco Differential Carrier comes new OEM 1979 Ford Bronco Differential Carrier aftermarket new 1979 Ford Bronco Differential Carrier of remanufactured 1979 Ford Bronco Differential Carrier 4WD - Ford 9 in. - Yukon Grizzly Locker - 35 Spline - 2.000 in. Diameter Bearing Journals - Fits Load Bolt Dropout - Rear.