Wheel Hubs and Bearings - Full Floating Axle - Dana

Wheel Hub






Removal

All vehicles

1. Remove the wheel and tire. For additional information, refer to Wheels and Tires.

2. Remove the brake caliper anchor plate. For additional information, refer to Disc Brake System.






3. Remove the axle shaft. For additional information, refer to Axle Shaft Full Floating Axle - Dana.






F-350

4. NOTE: Make sure that the drive tangs on the Wheel Hub Nut Socket engage the 4 slots of the hub nut.

Using the Wheel Hub Nut Socket, remove the hub nut.






F-450 and F-550

5. Using a suitable socket, remove the hub nut.






All vehicles

6. Remove the outer rear wheel bearing.






7. Remove the rear hub and brake disc assembly.

8. Remove the 8 bolts and separate the rear hub from the rear brake disc.






9. Inspect the rear hub for the following:
- Cracks and damage around the bolt holes.
- Oversized holes.

Installation

1. NOTICE: 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.

NOTICE: Clean and remove any dirt or foreign material in the rear hub bolt holes or damage to components may occur.

Install a new rear hub seal. For additional information, refer to Wheel Bearings, Wheel Hub Seal and Wheel Bearing Cups Wheel Hubs and Bearings - Full Floating Axle - Dana.

2. Position the rear brake disc on the rear hub and install the 8 bolts.
- Tighten to 155 Nm (114 lb-ft).






3. Wrap the spindle threads with electrician's tape to prevent damage while installing the rear hub and brake disc assembly.

4. Lightly coat the spindle and pack each rear wheel bearing with premium long-life grease.

5. Slide the rear hub and brake disc assembly over the axle housing spindle.
- Remove the electrician's tape.

6. Install the outer rear wheel bearing.






7. Start the hub nut making sure that the tab aligns correctly in the keyway prior to thread engagement.






8. NOTE: The following hub nut tightening sequence will prevent side-to-side end play of the hub and brake disc assembly.

NOTE: Apply inward pressure to the socket to separate the ratcheting components of the hub nut.

To adjust the bearings, tighten the hub nut.

- Tighten to 95 Nm (70 lb-ft).






9. Back off the hub nut 90 degrees.

10. Tighten the hub nut.
- Tighten to 24 Nm (18 lb-ft).

11. 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 2.3 Nm (20 lb-in) when end play is zero.






12. Install the axle shaft. For additional information, refer to Axle Shaft Full Floating Axle - Dana.






13. Install the brake caliper and anchor plate. For additional information, refer to Disc Brake System.






14. Install the wheel and tire. For additional information, refer to Wheels and Tires.