Corvette 2005-2008

Upper Control Arms

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Removal & Installation



  1. Raise and support the vehicle.
  2.  
  3. Remove the tire and wheel assembly.
  4.  
  5. Disconnect the wheel speed sensor electrical connector.
  6.  
  7. Disconnect the electronic suspension control sensor link.
  8.  
  9. Separate the suspension knuckle (1) from the upper control arm using J-42188.
  10.  
  11. Support the lower control arm with a jack stand.
  12.  
  13. Loosen the upper ball joint stud nut, but do not remove the nut.
  14.  
  15. Remove J-42188 and the ball joint stud nut (2) from the ball joint stud.
  16.  
  17. Remove the bolts retaining the upper control arm to the frame.
  18.  
  19. On Z06 models perform the following:
    1. Remove the limiter Brackets.
    2.  
    3. Remove Upper Control Arm Washers, making certain to note position of washers .
    4.  

  20.  
  21. Remove the upper control arm from the vehicle.
  22.  

To install:

  1. Install the upper control arm to the vehicle.
  2.  
  3. On Z06 models perform the following:
    1. Install Upper Control Arm Washers, in their original locations as noted above.
      NOTE
      Note the following when installing the washers:



      The washer without insert MUST be positioned closest to the control arm
       
      The washer with insert MUST be positioned closest to the frame
       
      Ensure that only ONE washer with a retaining insert is used on each control arm bolt
       
      The upper control washers will effect caster and camber. Make sure to use a equal number of washers on both sides of each upper control arm bushing.
       

    2.  
    3. Install the limiter Brackets.
      NOTE
      The limiter brackets must be installed on the inboard side of the rear upper control arm bushings.

    4.  

  4.  
  5. Install the upper control arm mounting bolts and to the frame.
  6.  
  7. Tighten the upper control arm mounting bolts as follows:

    Without Z60: 81 ft. lbs. (110 Nm)
     
    With Z60: 48 ft. lbs. (65 Nm)
     

  8.  
  9. Install the suspension knuckle upper ball joint stud into the upper control arm. It may be necessary to use an allen wrench to keep the ball joint stud from spinning while tightening the ball joint stud nut.
  10.  
  11. Install the upper ball joint stud nut.
  12.  
  13. Tighten the suspension knuckle ball joint stud nut as follows:

    Without Z60: 22 ft. lbs. (30 Nm) plus 195 degrees
     
    With Z60: 15 ft. lbs. (20 Nm) plus 195 degrees
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