Details

• Brand:

  

  

• SKU:

  FR3Z-4220-A

• Positions: Rear
• Other Names:

  Differential Carrier Bearing, Bearing Assembly Differential

• Description:

  This genuine Ford bearing is the differential carrier side bearing for the 8.8-inch rear axle used in the 2015 and later Mustang and related F-150 applications. The carrier bearing is a tapered roller bearing, supplied with its race, that supports the differential carrier in the axle housing on each side, locating the ring gear and carrier precisely against the axle's preload and setting the side-to-side position that controls ring-and-pinion backlash and mesh. It carries the full thrust and radial load the gearset transmits while letting the carrier rotate freely. Buyers searching for this part are usually rebuilding a rear differential and have found a worn, pitted, or noisy carrier bearing, or are replacing the bearings as a set during a gear swap or after contamination from a fluid loss. A failing carrier bearing produces a whine or growl that changes with load, allows the carrier to shift and disturb backlash, and can ultimately damage the ring and pinion. Cataloged under base number 4220 as the differential bearing, it is supplied with its race so the bearing and cup renew together. As an original Ford component it matches the factory bearing dimensions and load rating, which the differential setup procedure relies on. Carrier bearings are set with selective shims to a specified preload; follow the differential setup procedure and replace bearings as a matched set.

• Applications: 8.8 Axle. W/O LIMITED SLIP.

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