CTS 2003-2005

Strut (MacPherson Strut)

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Disassembly & Assembly



The rear suspension struts (in previous years, sometimes called MacPherson Struts) combine the functions of a shock absorber (damper) and a spring mount into one structural assembly. Disassembling the strut for spring removal and/or strut replacement requires special tools. Older vehicles had struts that could be taken apart and overhauled. The struts on vehicles covered by this manual do not come apart, except for the coil spring which can be replaced. If special tools are not available to disassemble the strut, it may be possible to purchase an aftermarket spring and strut already assembled.

For rear strut spring removal, please see the Coil Spring Removal and Installation procedure found in this section.

Removal & Installation



  1. Raise and safely support the vehicle.
  2.  
  3. Remove the wheel and tire assembly.
  4.  
  5. Disconnect the rear stabilizer shaft link.
  6.  
  7. Scribe marks on the strut and knuckle to aid reassembly.
  8.  
  9. Remove the strut mount-to-body nuts.
  10.  
  11. Disconnect the strut from the knuckle.
  12.  
  13. Remove the strut from the vehicle.
  14.  

To install:

  1. Install the strut to the knuckle, aligning the scribe marks made at removal. Install the bolts and nuts and torque the strut-to-knuckle nuts to 82 ft. lbs. (112 Nm).
  2.  
  3. Connect the rear stabilizer shaft links to the strut.
  4.  
  5. Install the wheel and tire assembly.
  6.  
  7. Lower the vehicle.
  8.  
  9. Have the rear wheel alignment checked and adjusted by a reputable alignment shop.
  10.  

 
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