GM Cutlass RWD 1970-1987 Repair Guide

Lower Control Arm

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See Figure 1

REMOVAL & INSTALLATION



  1. Raise the front of the vehicle with jackstands and remove the wheel.
  2.  
  3. Remove the shock absorber.
  4.  
  5. Remove the front stabilizer rod link from the lower control arm.
  6.  
  7. Disconnect the brake reaction rod from the lower control arm.
  8.  
  9. As a safety precaution and to gain maximum leverage, place a jack about 1 / 2 in. below the lower ball joint stud.
  10.  
  11. Remove the ball stud cotter pin and loosen the nut about 1 / 8 in. Do not remove the nut.
  12.  



Click image to see an enlarged view

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


CAUTION
If the nut is removed, the full force of the coil spring could be released.

  1. Rap the steering knuckle in the area of the stud or use a ball joint removal tool to separate the stud from the knuckle.
  2.  
  3. After the stud has broken loose from the knuckle, raise the jack against the control arm. Remove the nut and separate the steering knuckle from the tapered stud.
  4.  
  5. Carefully lower the jack under the control arm and release the spring. With the jack entirely lowered, it may be necessary to pry the spring off its seat on the lower control arm with a pry bar.
  6.  
  7. After the spring is removed, the lower control arm may be removed by removing the lock nut which attaches the control arm to the frame.
  8.  
  9. Install the lower control arm, position the spring and use the jack to compress the spring.
  10.  
  11. Raise the knuckle assembly, and insert the lower ball joint stud into the knuckle. Loosely install stud nut.
  12.  


CAUTION
Lower control arm to frame bolts must be installed from front to rear.

  1. Continue to compress spring until control arm to frame bolts can be installed. Do not torque bolts at this time.
  2.  
  3. Torque lower ball joint nut to 90 ft. lbs. (122 Nm), install a new cotter pin.
  4.  
  5. Install the stabilizer link and torque to 15 ft. lbs. (20 Nm) and install the shock absorber.
  6.  
  7. Install the wheel and lower the vehicle, Torque the lower control arm to frame bolts to 80 ft. lbs. (108 Nm) 1970-76; 125 ft. lbs. (169 Nm) 1977; 95 ft. lbs. (128 Nm) 1978-87.
  8.  

CONTROL ARM BUSHING REPLACEMENT



Front Bushing

See Figures 2, 3 and 4

  1. Remove the lower control arm.
  2.  
  3. Using proper bushing removal tools remove the bushing from the control arm.
  4.  

To install:
  1. Using suitable bushing driver tools, install the bushing onto the control arm.
  2.  
  3. Remove the bushing driver tools and install a suitable bushing flaring tool.
  4.  
  5. Turn the nut until the bushing is flared.
  6.  



Click image to see an enlarged view

Fig. Fig. 2: Removing the front bushing



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Fig. Fig. 3: Installing the front bushing



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Fig. Fig. 4: Flaring the front bushing

Rear Bushing

See Figures 5 and 6

  1. Remove the bushing from the control arm using the proper bushing removal tools.
  2.  

To install:
  1. Install the bushings using the appropriate tools. When properly installed, the bushings should bottom against the control arm.
  2.  
  3. Install the control arm using the procedures above.
  4.  



Click image to see an enlarged view

Fig. Fig. 5: Removing the rear bushing



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Fig. Fig. 6: Installing the rear bushing

 
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