Removal & Installation
- Remove the tire and wheel assembly.
- Remove the anchor plate. See DISC BRAKE CALIPERS & PADS .
- Remove the axle shaft bolts. Place a drain pan under the rear hub. Remove the axle shaft. Inspect the rear axle shaft gasket for damage, and axle shaft for cracks around the bolt holes. Replace as necessary.
- On Dana 70 differentials, use Wheel Hub Nut Socket (205-282 T88T-4252-A), remove the hub nut. See Fig 1.
- On Dana 135 differentials, remove the hub nut using a suitable socket.
- On all vehicles, remove the outer rear wheel bearing.
- Remove the rear hub and brake disc assembly.
- To install, reverse removal procedure. Install a new rear hub seal. Thoroughly clean the spindle. Wrap the spindle threads with electrician's tape to prevent damage while installing the rear hub and brake disc assembly.
- Lightly coat the spindle and pack each rear wheel bearing with Premium Long-Life Grease XG-1-C, or equivalent meeting Ford specification ESA-M1C75-B.
- Slide the rear hub and brake disc assembly over the axle housing spindle. Remove the electrician's tape.
- Install the outer rear wheel bearing.
- Start the hub nut making sure that the tab aligns correctly in the keyway prior to thread engagement. See Fig 2.
- To adjust the bearings, tighten the nut to specification. See TORQUE SPECIFICATIONS . Back off the nut 90 degrees.
- Tighten the nut to specification. To verify that there is no side-to-side end play, attach a magnetically mounted dial indicator to the spindle end and place the dial indicator tip on the outboard surface of the hub. Check for side-to-side end play. Final bearing adjustment has zero end play. The maximum torque to rotate the hub is 20 INCH lbs. (2.3 N.m) when end play is zero.
- Install the axle shaft. If the original axle bolts are being reused, apply a suitable thread adhesive to the bolts. Tighten bolts to specification. See TORQUE SPECIFICATIONS .
- Install the anchor plate.
- Install the tire and wheel assembly.
NOTE:
Ensure that the drive tangs on the special tool engage the four slots of the hub nut.
WARNING:
Install a new rear hub seal after removing the rear hub from the axle. A damaged or worn seal can permit bearing lubricant to reach the brake linings, resulting in ineffective brake operation. Failure to follow these instructions may result in personal injury.
CAUTION:
Clean and remove any dirt or foreign material in the rear hub bolt holes.
NOTE:
The following hub nut tightening sequence will prevent side-to-side end play of the hub and brake disc assembly. Apply inward pressure to the socket to separate the ratcheting components of the hub nut.