300, Magnum, 2005

Wheel Bearings

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Removal & Installation



The front wheel bearing and wheel hub of this vehicle are a one piece sealed unit or hub and bearing unit type assembly. No adjustment is possible.

On 2-wheel-drive vehicles, the hub and bearing is mounted to the center of the spindle using a retaining nut.

All front hub and bearings have five wheel mounting studs on the hub flange for mounting the wheel to the vehicle. The wheel mounting studs are the only replaceable components of the hub and bearing. Otherwise, the hub and bearing is serviced only as a complete assembly.

On 2-wheel drive vehicles, a magnetic encoder for the wheel speed sensor is pressed onto the hub and bearing. A magnetic encoder is not located on the AWD hub and bearing. It is pressed onto the axle halfshaft outer joint.

On All-Wheel-Drive vehicles, the hub and bearing is mounted to the knuckle using four mounting bolts and to the axle halfshaft using a retaining nut. The center of the AWD hub and bearing is splined to match the outer joint of the axle halfshaft.

2-Wheel Drive
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Raise and support vehicle.
  4.  
  5. Remove wheel mounting nuts, then tire and wheel assembly.
  6.  
  7. Access and remove front brake rotor.
  8.  
  9. Remove dust cap. When doing this, avoid damaging internal bore of hub to preserve seal integrity.
  10.  
  11. Remove hub nut.
  12.  
  13. Slide hub and bearing off knuckle spindle.
  14.  

To install:

Click image to see an enlarged view

Fig. 2-wheel drive hub/bearing assembly (1), magnetic encoder (2), stud (3)


NOTE
Prior to installation, inspect magnetic encoder (for wheel speed sensor) for any damage and make sure any metal debris sticking to it is removed.

  1. Slide hub and bearing onto knuckle spindle.
  2.  
  3. Install hub nut on end of spindle. Tighten hub nut to 184 ft. lbs. (250 Nm) torque.
  4.  
  5. Install brake rotor, then disc brake caliper and adapter assembly.
    NOTE
    Install a new dust cap to preserve seal integrity.

  6.  
  7. Install NEW dust cap on hub and bearing.
  8.  
  9. Install tire and wheel assembly. Tighten wheel mounting nuts to 110 ft. lbs. (150 Nm) torque.
  10.  
  11. Lower vehicle.
  12.  
  13. Pump brake pedal several times to ensure vehicle has a firm brake pedal before moving vehicle.
  14.  
  15. Check and adjust brake fluid level in reservoir as necessary.
  16.  
  17. Road test vehicle and make several stops to wear off any foreign material on brakes and to seat brake pads.
  18.  

All Wheel Drive Models
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Raise and support vehicle.
  4.  
  5. Remove wheel mounting nuts, then tire and wheel assembly.
  6.  
  7. While a helper applies brakes to keep hub from rotating, remove hub nut from the axle halfshaft.
  8.  
  9. Access and remove front brake rotor.
  10.  
  11. Remove four bolts fastening hub and bearing to knuckle.
  12.  
  13. Slide hub and bearing off axle halfshaft and knuckle.

    Click image to see an enlarged view

    Fig. All wheel drive front hub/bearing (1), studs (2)

  14.  

To install:


NOTE
Before installing hub and bearing on end of axle halfshaft, ensure isolation washer is present on end of halfshaft. Inspect washer making sure it is not worn or damaged. Washer can be installed in either direction on shaft.



Click image to see an enlarged view

Fig. Isolation washer-all wheel drive

  1. Slide hub and bearing onto axle halfshaft. Position hub and bearing onto knuckle, lining up mounting bolt holes.
  2.  
  3. Install four bolts fastening hub and bearing in place. Tighten mounting bolts to 50 ft. lbs. (68 Nm) torque.
  4.  
  5. Install brake rotor, then disc brake caliper and adapter assembly.
  6.  
  7. Install hub nut on end of axle halfshaft. While a helper applies brakes to keep hub from turning, tighten hub nut to 157 ft. lbs. (213 Nm).
  8.  
  9. Install tire and wheel assembly. Tighten wheel mounting nuts to 110 ft. lbs. (150 Nm) torque.
  10.  
  11. Lower vehicle.
  12.  
  13. Pump brake pedal several times to ensure vehicle has a firm brake pedal before moving vehicle.
  14.  
  15. Check and adjust brake fluid level in reservoir as necessary.
  16.  
  17. Road test vehicle and make several stops to wear off any foreign material on brakes and to seat brake pads.
  18.  

 
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