GM Corsica/Beretta 1988-1996 Repair Guide

Coil Springs

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REMOVAL & INSTALLATION



See Figure 1


CAUTION
The coil springs are under a considerable amount of tension. Be very careful when removing or installing them; they can exert enough force to cause very serious injuries.

  1. Raise and support the car on a hoist. Do not use a twin-post hoist. The swing arc of the axle may cause it to slip from the hoist when the bolts are removed. If a suitable hoist is not available, raise and safely support the vehicle using jackstands, then position an adjustable jack under the rear axle.
  2.  
  3. Remove the wheel and tire assembly.
  4.  
  5. Remove the right and left brake hose attaching brackets, allowing the hoses to hang freely. Do NOT disconnect the fluid lines.
  6.  
  7. Remove both shock absorber lower attaching bolts from the axle.
  8.  


WARNING
Do NOT have the rear axle by the brake hose, as this will stretch and/or damage the brake lines.

  1. Carefully lower the rear axle, then remove the coil spring and/or insulator from the vehicle.
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Typical rear coil spring removal and installation

To install:

Install the upper insulators to the body with adhesive prior installing the spring.

  1. Position the spring and insulator in the seats and raise the axle. The ends of the upper coil of the spring must be must be positioned in the seat of the body and within 9 / 16 in. (15mm) of the spring stop.
  2.  

It will be necessary to bring the axle assembly to curb height prior to tightening the bolts on the shocks.

  1. Attach the lower shock absorbers to the rear axle, then tighten the mounting nut and/or bolt, as follows:
    1. For 1988 models, tighten the lower mount nut and bolt to 35 ft. lbs. (47 Nm) for Corsica and to 43 ft. lbs. (58 Nm) for Beretta.
    2.  
    3. For 1989-90 models, tighten the lower mount nut and bolt to 35 ft. lbs. (47 Nm) for Corsica and 21 ft. lbs. (28 Nm) for Beretta.
    4.  
    5. For 1991-96 models, tighten the lower mount nut for Beretta to 35 ft. lbs. (47 Nm) and the lower mount bolt for Corsica to 35 ft. lbs. (47 Nm).
    6.  

  2.  
  3. Attach the brake line brackets to the body.
  4.  
  5. Install the wheel and tire assembly.
  6.  
  7. Remove the jackstands, then carefully lower the vehicle.
  8.  

 
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