GM Cutlass RWD 1970-1987 Repair Guide

Upper Control Arm

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See Figure 1

REMOVAL & INSTALLATION



  1. Raise the vehicle and support safely with jackstands.
  2.  
  3. Support the outer end of the lower control arm with a jack.
  4.  


CAUTION
Leave the jack in place during removal and installation, in order to keep the spring and control arm positioned.



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the upper control arm

  1. Remove the wheel.
  2.  
  3. Separate the upper ball joint from the steering knuckle as described above under Upper Ball Joint Replacement.
  4.  
  5. Remove the control arm shaft-to-frame nuts.
  6.  

Tape the shims together and identify them so that they can be installed in the positions from which they were removed.

  1. Remove the bolts which attach the control arm shaft to the frame and remove the control arm. Note the positions of the bolts.
  2.  

To install:
  1. Make sure that the shaft-to-frame bolts are installed in the same position they were in before removal and that the shims are in their original positions.
  2.  
  3. Use free running nuts (not locknuts) to pull serrated bolts through the frame.
  4.  
  5. Install the locknuts. Tighten the thinner shim pack first.
  6.  
  7. After the vehicle has been lowered to the ground, bounce the front end to center the bushings and then tighten the bushing collar bolts to 45 ft. lbs. (61 Nm). Tighten the shaft-to-frame bolts to 90 ft. lbs. (122 Nm). The control arm shaft nuts are tightened to 75 ft. lbs. (102 Nm) on models through 1982. Use 85 ft. lbs. (115 Nm) on 1983-87 models.
  8.  

CONTROL ARM BUSHING REPLACEMENT



See Figures 2, 3 and 4

  1. Remove the upper control arm assembly from the car.
  2.  
  3. Remove the nuts from the ends of the pivot shaft.
  4.  
  5. Push the bushings out of the control arm using suitable bushing removal tools.
  6.  



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Fig. Fig. 2: Upper control arm bushings



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Fig. Fig. 3: Removing the upper control arm bushing



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Fig. Fig. 4: Make sure the bearings are pushed in the proper distance

To install:
  1. Place the pivot shaft in the control arm and push new bushings into the control arm and over the end of the pivot shaft using suitable bushing driver tools. Upper control arm bushings are to be installed 0.5 in. (13.3 mm) from the face of the control arm to the bushing outer sleeve.
  2.  
  3. Assemble the nuts to the ends of the pivot shafts.
  4.  
  5. Install the upper control arm assembly following the procedures above.
  6.  

 
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