Nissan Pick-ups and Pathfinder 1970-1988

Lower Control Arm

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4 and 5

The lower ball joint on 1986-88 2wd models (D21D series) is integral with the lower control arm. They are removed and replaced as a unit.

1978-83 Models
  1. Perform Steps 1-6 of the Lower Ball Joint removal procedure.
  2.  
  3. Remove the lower arm pivot shaft bolt and washer. Tap the pivot shaft out of the bushing. Push down on the torsion bar and remove the lower arm.
  4.  

To install:
  1. Use a bushing driver to tap the lower arm bushing from the frame.
  2.  
  3. Drive the new bushing into the frame.
  4.  
  5. Install the arm and pivot shaft, tightening the nut to 80-108 ft. lbs.
  6.  
  7. Follow Step 8 of the lower ball joint removal procedure.
  8.  

1984-86 Models (720D Series)
  1. Disconnect the lower ball joint from the knuckle as previously described.
  2.  
  3. Remove the torsion bar as previously described.
  4.  
  5. Unbolt the shock absorber from the lower arm.
  6.  
  7. Unbolt the stabilizer bar and tension/compression rod from the arm.
  8.  
  9. Remove the torque arm from the control arm.
  10.  
  11. Unbolt the control arm from the frame.
  12.  
  13. Unbolt the ball joint.
  14.  
  15. Using a driver, remove the lower arm spindle bushings from the frame.
  16.  

To install:
  1. Obtain new bushings.
  2.  
  3. Install the ball joint on the lower arm.
  4.  
  5. Using a driver, install the new bushings, coated with a soapy solution, in the frame.
  6.  
  7. Install the torque arm on the torsion bar.
  8.  
  9. Position the control arm on the frame and then install the torque arm onto the control arm. Tighten the inner bolt to 26-33 ft. lbs. (35-45 Nm) and the outer side to 20-27 ft. lbs. (26-36 Nm).
  10.  
  11. Install the ball joint on the knuckle.
  12.  
  13. Connect the shock absorber.
  14.  
  15. Install the tension/compression rod and stabilizer bar.
  16.  
  17. Lower the truck so that it is resting normally on its wheels.
  18.  
  19. Check wheel alignment.
  20.  

1986-88 Models (D21D Series)

The lower ball joint on 1986-88 2wd models (D21D series) is integral with the lower control arm. They are removed and replaced as a unit.

  1. Make matching marks on the anchor arm crossmember when loosening the adjusting nut until there is no tension on the torsion bar and remove the torsion bar.
  2.  
  3. Separate the lower ball joint from the knuckle spindle on 2wd models. On 4wd models, separate it from the control arm.
  4.  
  5. Remove the front lower control arm attaching nut.
  6.  
  7. If necessary, remove the bushing of the lower control arm spindle from the frame using a suitable tool.
  8.  

To install:
  1. Coat the control arm bushing with soapy water and then install the arm to the frame. Tighten the bolt to 80-108 ft. lbs. (109-147 Nm).
  2.  
  3. Connect the ball joint to the knuckle on 2wd models or to the control arm on 4wd models.
  4.  
  5. Install the torsion bar and lower the vehicle.
  6.  
  7. Check the front end alignment.
  8.  



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Fig. Fig. 1: Removing the lower pivot shaft bushing nut



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Fig. Fig. 2: Removing the lower pivot shaft retaining nuts



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Fig. Fig. 3: Removing the lower pivot shaft



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Fig. Fig. 4: Removing the lower pivot shaft bushing washers



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Fig. Fig. 5: Installing the lower pivot shaft in the lower arm

 
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