Large Rear Axle Bearing, 3 1/8 inch, 66-77 Ford Bronco

Replacement 3 1/8 inch rear axle bearing for 1966-77 Ford Broncos with big bearing Ford 9 inch rear differentials. If your early Bronco has a large bearing Ford 9 inch rear end, this axle bearing will replace the factory wheel bearings on your rear axles. If you have a 31 spline axle conversion, you will likely need Set 20 bearings instead of these bearings for that application.