Front Lower Arm: Inspection

Check the bushing for wear and deterioration.
Check the lower arm for bending or breakage.
Check the ball joint dust cover for cracks.
Check all bolts.
Check the lower arm ball joint for rotating torque.
1. If a crack is noted in the dust cover, replace the ball joint assembly.
2. Move the ball joint stud several times in a circular motion.
3. Measure the ball joint rotating torque.
  Standard value:
  
  0.4 ~ 2 Nm (4 ~ 20 kgf.cm, 0.29 ~ 1.45 lb-ft)
  
  NOTE: Measure torque using the special tool (09532-11600) and torque wrench at the range of 0.5 ~ 2 RPM after moving the ball joint stud at degree 3° several times at room temperature.
4. If the rotating torque is below the lower limit of standard value, replace the ball joint assembly.
5. Even if the rotating toque is below the lower limit of the standard value, the ball joint may be reused unless it has drag and excessive play.
  
  Fig 1: Measuring Ball Joint Rotating Torque
  Courtesy of HYUNDAI MOTOR CO.