Lexus LX470 2002-06

Torsion Bar

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Removal & Installation





Click image to see an enlarged view

Fig. Torsion bar mounting exploded view

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Engine under cover
     

  4.  
  5. Measure dimension A as shown between the adjustment bolt head and the frame.

    Click image to see an enlarged view

    Fig. Matchmark the torsion bar to the anchor arm and torque arm



    Click image to see an enlarged view

    Fig. Reference measurements A and B

  6.  
  7. Loosen the adjusting bolt until all spring tension is relieved.
  8.  
  9. Measure dimension B as shown between the adjustment bolt head and the frame.
  10.  
  11. Remove or disconnect the following:

    Adjustment bolt, swivel and seat
     
    Torsion bar and anchor arm. Separate the anchor arm from the torsion bar.
     
    Torque arm
     

  12.  

To install:

  1. Install or connect the following:

    Torque arm. Tighten the fasteners to 166 ft. lbs. (225 Nm).
     
    Torsion bar and anchor arm. Align the matchmarks.
     
    Adjustment bolt, swivel and seat
     

  2.  
  3. Check that dimension B is close to the measurement made at disassembly.
  4.  
  5. If installing a new torsion bar, tighten the adjustment bolt until dimension A is as follows:

    Left torsion bar: 0.315-0.984 inches (8-25mm)
     
    Right torsion bar: 0.079-0.709 inches (2-18mm)
     

  6.  
  7. If installing the original torsion bar, tighten the adjustment bolt until dimension A is close to the measurement made at disassembly.
  8.  
  9. Install or connect the following:

    Engine under cover
     
    Front wheel
     

  10.  
  11. Place the vehicle on a flat, level surface and check the vehicle curb height as follows:
    1. Step 1: Measure dimension A between the spindle center and the ground.
    2.  
    3. Step 2: Measure dimension B between the lower control arm front bolt center and the ground.
    4.  
    5. Step 3: Turn the adjusting bolt so that A minus B is equal to 2.795 inches (71mm).

      Click image to see an enlarged view

      Fig. Ride height measurements A and B

    6.  

  12.  

 
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