GM Grand Am/Achieva/Calais/Skylark/Somerset 1985-98

Coil Springs

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REMOVAL & INSTALLATION



See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the rear suspension components, including the coil springs

  1. Raise and safely support the vehicle.
  2.  
  3. Remove the rear wheel and tire assemblies.
  4.  
  5. Loosen, but do not remove the axle pivot bolts.
  6.  
  7. Unfasten the right and left brake line bracket attaching screws, then allow the brake line to hang free.
  8.  
  9. Place a floor jack under the axle, near the lower shock absorber bolt. Position the jack just high enough to allow the lower shock absorber bolt to be removed.
  10.  
  11. Remove the shock absorber bolt.
  12.  


CAUTION
The coil springs are under tension. Use extreme caution when lowering the axle with the jack after the shock bolts are removed.

  1. Carefully lower the jack, releasing the tension on the spring.
  2.  
  3. Repeat steps 5 through 7 with the other side of the axle.
  4.  
  5. With both shock absorbers removed, the axle should hang low enough to allow the springs to be removed from the vehicle.
  6.  

To install:

Prior to installing the coil springs, install the insulators in their seats using an adhesive to hold them in place.

  1. Position the springs on the insulators in the proper position.
  2.  
  3. Using a floor jack, raise one side of the axle just high enough to install the lower shock absorber bolt.
  4.  
  5. Install the shock absorber bolt and tighten it to 35 ft. lbs. (47 Nm).
  6.  
  7. Repeat steps 11 and 12 and install the other shock absorber bolt on the opposite side of the axle.
  8.  
  9. Install the right and left brake line bracket attaching screws.
  10.  
  11. Install the wheel and tire assemblies.
  12.  
  13. Lower the vehicle from the jackstands.
  14.  

Tightening the rear axle pivot bolts with the rear of the vehicle suspended will cause the axle bushings to prematurely fail. The vehicle must be at curb height.

  1. Tighten the rear axle pivot bolts to 59 ft. lbs. (80 Nm). Then, turn the bolts an additional 120 degrees clockwise.
  2.  

 
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