Miata 1990-1997

Upper Control Arms

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Removal & Installation





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Fig. Removal and installation of the upper control arm

  1. Raise and safely support the vehicle. Remove the wheel and tire assembly.
  2.  
  3. Remove the undercover, and remove the band for the wheel speed sensor harness. Support the lower control arm with a jack.
  4.  
  5. Remove the cotter pin and loosen the upper ball joint nut. Press the ball joint stud from the knuckle using press tool 49 0118 850C or equivalent. Remove the nut.
  6.  
  7. Remove the lower strut mounting bolt.
  8.  
  9. Remove the upper control arm bolt and nut, and remove the upper control arm.
  10.  

To install:

  1. Install the upper control arm, and loosely tighten the bolt and nut.
  2.  
  3. Loosely install the lower strut mounting bolt.
  4.  
  5. Connect the ball joint to the knuckle, and tighten to 31-45 ft. lbs. (42-61 Nm). Install a new cotter pin.
  6.  
  7. Install the band for the wheel speed sensor, and install the undercover.
  8.  
  9. Install the wheel and tire assembly and lower the vehicle. When the vehicle is on the ground, tighten the upper control arm bolt and nut to 87-101 ft. lbs. (118-137 Nm), and the lower strut mounting bolt to 54-69 ft. lbs. (73-93 Nm).
  10.  
  11. Check the front wheel alignment.
  12.  

 
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