Rear

Upper Arm Ball Joint Rotation Starting Torque Check

Move the upper arm ball joint stud back and forth for several times, then measure the upper arm ball joint rotation starting torque using the special tool MB991006.

Standard value
Starting torque 3.4Nm (30.0 in-lb) or less

When the measured value exceeds the standard range, replace the upper arm assembly.

Even if the measured value is within the standard value, check that the upper arm ball joint has no looseness or gritty feeling. If there is no looseness or gritty feeling, it is judged as usable.