Envoy, Rainer, Trailblazer 2006-2007

Wheel Bearings

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Adjustment



The wheel bearings on these vehicles are not adjustable. If the bearings become loose or make noise, they must be replaced.

Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. On 4WD vehicles, remove wheel center cap, if equipped, and the drive axle nut and washer
  4.  
  5. Raise and support the vehicle.
  6.  
  7. Remove or disconnect the following:
    NOTE
    Lay the hub and bearing on the wheel studs on the outboard side. This will avoid damaging the bearing seal.



    Tire and wheel
     
    Caliper, leaving the fluid lines connected
     
    Brake rotor
     
    Halfshaft from the hub and bearing on 4WD vehicles. Place a brass drift against the outer edge of the halfshaft to protect the shaft threads. Use a hammer to sharply strike the brass drift, but to do not remove the halfshaft at this time.
     
    Wheel speed sensor
     
    Wheel hub and bearing-to-steering knuckle bolts and hub and bearing
     



    Splash shield from the steering knuckle
     
    Seal from the hub and bearing
     

  8.  

To install:

  1. Install or connect the following:

    Wheel hub and bearing seal
     
    Splash shield to the steering knuckle, making sure it-s properly aligned
     
    Hub and bearing to the steering knuckle, aligning the threaded holes
     
    Hub and bearing bolts and tighten to 77 ft. lbs. (105 Nm)
     
    Wheel speed sensor. Tighten the bolt to 13 ft. lbs. (18 Nm).
     
    Rotor and brake caliper
     
    Tire and wheel
     

  2.  
  3. Lower the vehicle
  4.  
  5. On 4WD vehicles, install the drive axle nut and tighten to 103 ft. lbs. (140 Nm), then install the center cap.
  6.  

 
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