Rear Axles - 11" Drum, Big Bearing, 31 Spline, 76-77 Ford Bronco (per pair)
New 31 Spline Rear Axles for 76-77 Classic Ford Broncos. Axles come with axle studs, Set 20 Bearings and seals and retainer plates. These axles fit 76-77 Bronco's with 3 1/8 diameter bearings 1/2'' retainer bolts and 11 drums.
Our 31 spline axle shafts are up to 60% stronger than factory 28 spline axles! This is achieved by compounding the added strength of using more splines which are rolled rather than cut with the use of stronger 1541H heat treated steel.
These axles are heat inducted and have rolled splines for hard core use. The set 20 Bearing is lubricated by the differential gear oil for extended bearing life and heavy load capacity. Drum measurements are made from the inside of the drum.
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