GM: Electra/Park Avenue/Ninety-Eight 1990-1993

Control Arm and Adjusting Link

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Fig. Fig. 1 Rear control arm and related parts



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Fig. Fig. 2 Adjusting link and related parts

REMOVAL & INSTALLATION



  1. Raise and support the vehicle safely. Support the vehicle so the control arms hang free.
  2.  
  3. Follow the directions above, and remove the coil spring.
  4.  
  5. Disconnect the suspension adjustment link retaining nut and separate the adjusting link assembly from the control arm. Separate the link from the knuckle and remove.
  6.  
  7. Remove the cotter pin. Loosen the castellated nut so that a few threads are showing between the bottom of the nut and the knuckle. The purpose of this is to retain the arm when you break the stud taper loose.
  8.  
  9. Separate the knuckle from the ball stud, using a ball joint separator. Remove the control arm.
  10.  

Ball joint and/or control arm bushing service, if necessary, can only be accomplished by obtaining the proper pressing tools and following the instructions provided with the tools. Attempts to replace these components without the presses will result in damage to the bushings or arm.

To install:

  1. Install the control arm, and through bolts. Connect the ball joint to the steering knuckle. Tighten the castellated nut to at least 41 ft. lbs. (55 Nm). Tighten farther, if necessary, to align the nut slots with the hole in the stud, then install a new cotter pin.
  2.  
  3. Connect the link assembly to the knuckle and control arm. Connect the suspension adjustment link retaining nut and torque to 63 ft. lbs. (85 Nm). Install the castellated nut and tighten to at least 33 ft. lbs. (45 Nm). Tighten farther, if necessary, to align the nut slots with the hole in the stud, then install a new cotter pin.
  4.  
  5. Follow the directions above, and install the coil spring.
  6.  
  7. Install the tire and wheel assembly.
  8.  
  9. Lower the vehicle.
  10.  
  11. With the full weight of the vehicle on the ground, tighten the control arm pivot nuts to 85 ft. lbs. (115 Nm), the control arm pivot bolts to 125 ft. lbs. (170 Nm) and the stabilizer support bolt to 13 ft. lbs. (18 Nm).
  12.  

 
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