Wheel Bearing Adjustment - F-250, F-350

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If bearings are adjusted too tightly, they will overheat and wear rapidly. An adjustment that is excessively loose can cause pounding and contribute to uneven tire wear, steering difficulties and inefficient brakes. Check bearing adjustment at regular inspection intervals.

NOTE: New wheel seals must be installed when the hub is removed. A damaged or worn seal can permit bearing lubricant to reach the brake linings, resulting in ineffective brake operation and necessitating premature replacement of the linings.

Remove the wheel and tire. For additional information, refer to WHEELS AND TIRES .
Remove the grease cap.

Fig 1: Locating Grease Cap
Courtesy of FORD MOTOR CO.
Remove the cotter pin and the wheel hub nut.
- Discard the cotter pin.
  
  Fig 2: Locating Cotter Pin And Wheel Hub Nut
  Courtesy of FORD MOTOR CO.
While rotating the wheel clockwise, tighten the wheel hub nut to 28 Nm (21 lb-ft) to seat the bearings.

Fig 3: Rotating Wheel Clockwise
Courtesy of FORD MOTOR CO.
Back off the wheel hub nut until loose (approximately 120 degrees to 180 degrees).

Fig 4: Loosening Wheel Hub Nut
Courtesy of FORD MOTOR CO.
While rotating the wheel, tighten the wheel hub nut to 2 Nm (18 lb-in). Turning torque required to rotate the hub should be 2 Nm (18 lb-in).
- Install a new cotter pin.
  
  Fig 5: Tightening Wheel Hub Nut
  Courtesy of FORD MOTOR CO.
Install the grease cap.

Fig 6: Locating Grease Cap
Courtesy of FORD MOTOR CO.
Install the wheel and tire. For additional information, refer to WHEELS AND TIRES .