LaCrosse 2006-2007

Struts (MacPherson Struts)

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Disassembly & Assembly



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove the strut from the vehicle.

    Click image to see an enlarged view

    Fig. Strut installed in a compressor

  4.  
  5. Install the strut (2) in a strut compressor tool, such as J 45400  (1).
    NOTE
    The spring is compressed when the strut moves freely.

  6.  
  7. Turn the spring compressor forcing screw until the coil spring is compressed.

    Click image to see an enlarged view

    Fig. Use a 45 TORX® socket in order to hold the strut shaft

  8.  
  9. Use a 45 TORX® socket in order to hold the strut shaft. Remove the upper strut mount nut.
  10.  
  11. Remove the strut from the compressor.
  12.  
  13. Loosen the compressor forcing screw until the upper strut mount and coil spring may be removed.
  14.  
  15. Remove the upper strut mount and the coil spring from the compressor.
  16.  

To assemble

  1. Install the coil spring and upper strut mount in the compressor.
  2.  
  3. Turn the spring compressor forcing screw (1) until the coil spring is compressed.
  4.  
  5. Install the strut to the coil spring and upper strut mount.
  6.  
  7. Install the strut retaining nut. Install the strut mount nut. Tighten the strut mount nut to 55 ft. lbs. (75 Nm).
  8.  
  9. Remove the strut from the compressor.
  10.  
  11. Install the strut.
  12.  

Removal & Installation




WARNING
Care should be taken to avoid chipping or scratching the coating when handling the suspension coil spring. Damage to the coating can cause premature failure.

  1. Remove the strut upper mounting nuts.
    NOTE
    Lift the vehicle using ONLY a frame-contact vehicle lift. Do NOT lift the vehicle using a suspension-contact vehicle lift.



    Click image to see an enlarged view

    Fig. strut upper mounting nuts

  2.  
  3. Before servicing the vehicle, refer to the Precautions Section.
  4.  
  5. Raise and support the vehicle.
  6.  
  7. Remove the tire and wheel.

    Click image to see an enlarged view

    Fig. Matchmark the strut to the knuckle

  8.  
  9. Matchmark the strut to the knuckle.
  10.  
  11. Remove the strut lower bolts and nuts.

    Click image to see an enlarged view

    Fig. Strut lower bolts/nuts

  12.  
  13. Remove the strut.
  14.  

To install:

  1. Install the strut.
  2.  
  3. Install the strut upper mounting nuts. Tighten the nuts to 24 ft. lbs. (33 Nm).
  4.  
  5. Install the strut lower bolts and nuts.
    WARNING
    This is a prevailing torque type fastener. This fastener may be reused ONLY if the fastener and its counterpart are clean and free from rust and the fastener develops 27 inch lbs. (3 Nm) of torque/drag against its counterpart prior to the fastener seating. If the fastener does not meet these criteria, REPLACE the fastener.

  6.  
  7. Align the strut to the mark on the knuckle. Tighten the strut lower nuts to 89 ft. lbs. (120 Nm).
  8.  
  9. Install the tire and wheel.
  10.  
  11. Lower the vehicle.
  12.  
  13. Align the front wheels.
  14.  

 
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