Nissan Z - ZX 1970-1988 Repair Guide

Ball Joint

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INSPECTION



See Figure 1



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Fig. Fig. 1: Cross-sectional view of a ball joint

  1. Raise the vehicle and place jackstands safely under the car so that all weight is removed from both front wheels.
  2.  
  3. Apply downward and upward pressure to the outer end of the transverse link, avoid any compression of the spring.
  4.  
  5. Measure the play between the link and the bottom of the strut which effectively is the axial play in the ball joint. If play exceeds 0.023 in. (0.6mm), replace the ball joint as later described.
  6.  

REMOVAL & INSTALLATION



See Figures 2 and 3

On the 1984 and later models, the ball joint is a part of the transverse link and cannot be replaced; therefore, the ball joint must be replaced with the transverse link as an assembly.

  1. Refer to the Transverse link removal and installation procedures, in this section and remove the transverse link from the vehicle.
  2.  
  3. On the 1970-83 models, place the transverse link in a vise, then remove the ball joint-to-transverse link bolt and the ball joint/knuckle arm assembly.
  4.  



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Fig. Fig. 2: Remove the retaining bolts securing the ball joint to the strut



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Fig. Fig. 3: Separating the steering knuckle from the ball joint assembly

  1. Remove the cotter pin and the castle nut from the ball joint stud.
  2.  
  3. Using an arbor press, place the knuckle arm/ball joint assembly (1970-83) or transverse link/knuckle arm assembly (1984 and later) on blocks and press the ball joint from the knuckle arm.
  4.  
  5. To install, reverse the removal procedures. Tighten the ball joint-to-knuckle arm nut to 40-55 ft. lbs. (55-76 Nm) for 1970-78 or 71-88 ft. lbs. (96-120 Nm) for 1979 and later; the ball joint-to-transverse link bolt to 14-18 ft. lbs. (19-25 Nm) for 1970-78 or 33-40 ft. lbs. (44-54 Nm) for 1979-83.
  6.  

 
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