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Upper Control Arm: Installation

  1. Position upper control arm in mounting brackets on frame. Install mounting bolts as shown through mounting brackets and control arm bushings. See Figure. Install nuts on frame mounting bolts. DO NOT FULLY TIGHTEN BOLTS AT THIS TIME.
  2. Install upper ball joint stud into steering knuckle. Install ball joint castle nut. See Figure. Tighten castle nut to 102 N.m (75 ft. lbs.) torque. Once nut is tightened to specified torque, it may be necessary to continue tightening nut a small amount to allow for cotter pin installation through castle nut and hole in ball joint stud. DO NOT LOOSEN NUT. 
  3. Install cotter pin through nut and stud of upper ball joint. See Figure.
  4. Install ABS wheel speed sensor in steering knuckle. See Figure. Install and tighten mounting bolt to 11 N.m (100 in. lbs.) torque.
  5. Install brake rotor and brake caliper on knuckle. (Refer to BRAKES/HYDRAULIC/MECHANICAL/ROTOR - INSTALLATION)
  6. Install wheel and tire assembly (Refer to TIRES/WHEELS - INSTALLATION) . Progressively tighten wheel mounting nuts in proper sequence to 122 N.m (90 ft. lbs.) torque.
  7. Lower vehicle.
  8. Position vehicle on alignment rack/drive-on hoist.
  9. Set vehicle to design height. (Refer to SUSPENSION/WHEEL ALIGNMENT - STANDARD PROCEDURE - DESIGN HEIGHT MEASUREMENT) 
  10. Tighten upper control arm frame mounting bolts to 102 N.m (75 ft. lbs.) torque.
  11. Perform wheel alignment. (Refer to SUSPENSION/WHEEL ALIGNMENT - STANDARD PROCEDURE) 
  12. Road test vehicle to ensure proper operation.
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