300, 300C & Magnum 2006-2008, Charger 2006-2008

Coil Springs

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  

The strut assembly must be removed from vehicle for it to be disassembled and assembled. For strut assembly disassembly and assembly, use of strut Spring Compressor, Pentastar Service Equipment (PSE) tool W-7200, or equivalent, is recommended to compress coil spring. Follow manufacturer-s instructions closely.


CAUTION
Do not remove strut shaft nut before coil spring is compressed. Coil spring is held under pressure and must be compressed, removing spring tension from upper and lower mounts, before strut removal.



Click image to see an enlarged view

Fig. Position strut assembly coil spring (1) on hooks (2) of compressor following manufacturer-s instructions. Install clamp securing strut to lower spring Coil

  1. Position strut assembly coil spring on hooks of compressor following manufacturer-s instructions. Install clamp securing strut to lower spring coil.

    Click image to see an enlarged view

    Fig. Position compressor upper hooks (1) on upper coil spring (2) following manufacturer-s instructions

  2.  
  3. Position compressor upper hooks on upper coil spring following manufacturer-s instructions. To ease installation, rotate strut as necessary positioning strut in compressor so that upper spring coil ends (step in upper mount) at straight outward position from compressor.
  4.  
  5. Compress coil spring until all spring tension is removed from upper mount.

    Click image to see an enlarged view

    Fig. Position Wrench (2), Special Tool 9362, on strut shaft (1) retaining nut

  6.  
  7. Position Wrench (2), Special Tool 9362, on strut shaft (1) retaining nut. Next, insert 8mm socket though wrench onto hex located on end of strut shaft. While holding strut shaft from turning, remove nut from strut shaft using wrench.
  8.  
  9. Remove clamp from bottom of coil spring and remove strut and lower isolator out through bottom of coil spring.

    Click image to see an enlarged view

    Fig. Remove upper mount (1) from strut shaft and coil spring (2)

  10.  
  11. Remove upper mount from strut shaft and coil spring.
    NOTE
    Prior to removing spring from compressor, note location of lower spring coil end in relationship to compressor to ease assembly of components later.



    Click image to see an enlarged view

    Fig. Strut parts: (1) spring, (2) lower isolator, (3) strut, (4) jounce bumper, (5) upper mount

  12.  
  13. Back off compressor drive, releasing tension from coil spring. Push back compressor upper hooks and remove coil spring from compressor.
  14.  
  15. Remove jounce bumper from strut shaft by pulling straight up and off.
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  17. Remove lower isolator from strut body by pulling straight up and off strut shaft.
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  19. Inspect strut assembly components for following and replace as necessary:

    Inspect strut for any condition of shaft binding over full stroke of shaft.
     
    Inspect upper mount for cracks and distortion and its retaining studs for any sign of damage.
     
    Inspect upper spring isolator for severe deterioration.
     
    Inspect lower spring isolator for severe deterioration.
     
    Inspect dust shield for tears and deterioration.
     
    Inspect coil spring for cracks in the coating and corrosion.
     
    Inspect jounce bumper for cracks and signs of deterioration.
     

  20.  

To assemble


WARNING
Use care not to damage coil spring coating during spring assembly. Damage to coating will jeopardize its corrosion protection.


NOTE
Left and right springs must not be interchanged.

  1. Place coil spring (part number tag end upward) in compressor lower hooks following manufacturer-s instructions. To ease strut reassembly, rotate coil spring around until upper coil ends at straight outward position from compressor. Proper orientation of spring to upper mount (once installed) is necessary.

    Click image to see an enlarged view

    Fig. Coil spring upper end (1) positioning

  2.  
  3. Position compressor upper hooks over coil spring following manufacturer-s instructions.
  4.  
  5. Compress coil spring far enough to allow strut installation.
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  7. If separated, install upper mount onto coil spring. Match step in upper isolator to end of spring coil.
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  9. Install lower spring isolator on strut body.
  10.  
  11. Install jounce bumper on strut shaft, small end first.

    Click image to see an enlarged view

    Fig. Match step built into isolator (1) to lower coil end (2)

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  13. Install strut through bottom of coil spring until lower spring isolator (on strut) contacts lower end of coil spring. Match step built into isolator to lower coil end. Once in this position, stabilizer bar bracket, or clevis key on AWD models, should point straight inward toward compressor body. If not, rotate isolator on strut body until alignment is achieved when isolator is correctly positioned with lower spring coil.
  14.  
  15. Install clamp to hold strut and coil spring together.
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  17. Install retaining nut on strut shaft as far as possible by hand. Make sure nut is installed far enough for 8mm socket to grasp hex on end of shaft for tightening.
  18.  
  19. Install Wrench (on end of a torque wrench), Special Tool 9362, on strut shaft retaining nut. Next, insert 8mm socket though wrench onto hex located on end of strut shaft. While holding strut shaft from turning, tighten nut using wrench to 66 ft. lbs. (90 Nm).
  20.  
  21. Slowly release tension from coil spring by backing off compressor drive fully. As tension is relieved, make sure strut components are properly in place.
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  23. Remove clamp from lower end of coil spring and strut. Push back spring compressor upper and lower hooks, then remove strut assembly from spring compressor.
  24.  
  25. Install strut assembly on vehicle.
  26.  

 
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