GM Lumina/Grand Prix/Cutlass Supreme/Regal 1988-1996

Front Hub and Bearing

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All W-body cars are equipped with sealed hub and bearing assemblies. The hub and bearing assemblies are not serviceable. If the assembly is damaged, the complete unit must be replaced.

REMOVAL & INSTALLATION



See Figure 1

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Fig. Fig. 1: Front hub and bearing removal

  1. Disconnect the negative battery cable.
  2.  
  3. Loosen the halfshaft/driveaxle nut and washer one turn. Do NOT remove the nut at this time.
  4.  


WARNING
Do NOT remove the nut at this time. Failure to follow proper removal sequence may cause permanent bearing damage.

  1. Raise and safely support the vehicle with jackstands.
  2.  
  3. Remove the front wheel and tire assembly.
  4.  
  5. Remove the brake caliper, bracket and rotor. For details, please refer to the brakes section of this information guide.
  6.  
  7. Remove the halfshaft/driveaxle nut and washer.
  8.  
  9. Loosen the four hub/bearing-to-knuckle attaching bolts.
  10.  

Protect the halfshaft boots from damage during removal.

  1. Using front hub spindle removing tool J-28733-A or equivalent, push the halfshaft splines back out of the hub/bearing assembly.
  2.  
  3. Remove the hub/bearing-to-knuckle attaching bolts.
  4.  
  5. If equipped, remove the ABS sensor mounting bolt and position the sensor aside to prevent damage.
  6.  
  7. Remove the hub/bearing assembly from the vehicle. Inspect all components for damage, and replace as necessary.
  8.  

To install:
  1. Position the hub/bearing assembly onto the halfshaft splines.
  2.  
  3. Install the knuckle-to-hub/bearing assembly attaching bolts and tighten to 52 ft. lbs. (70 Nm).
  4.  
  5. If equipped, properly position the ABS sensor and install the mounting bolt.
  6.  
  7. Install the rotor, caliper and bracket assembly, as outlined in Brakes of this repair guide.
  8.  
  9. Install a new halfshaft nut and washer. Do NOT tighten the nut at this time.
  10.  
  11. Install the front wheel and tire assembly and hand-tighten the lug nuts.
  12.  
  13. Carefully lower the vehicle.
  14.  
  15. Install a new halfshaft/driveaxle nut and washer and tighten to 184 ft. lbs. (250 Nm).
  16.  
  17. Tighten the wheel lug nuts to 100 ft. lbs. (136 Nm).
  18.  
  19. Connect the negative battery cable.
  20.  

 
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