1. Remove the upper arm from the vehicle.
2. Inspect for damage, cracks, and bending.

3. Inspect the ball joint rotation torque.
(1) Rotate the ball joint five times.
(2) Measure the rotation torque using a suitable allen socket and a torque wrench.
- If not within the specification, replace the lower arm component.
Rotation torque
1.5 N·m {15.0 kgf·cm, 13.2 in·lbf} max.
Front upper arm removal/installation
Front lower arm (front) removal/installationMazda 6 Service Manual: Front wheel alignment
Specification (Unloaded)*1
Normal
Elevated*3
*1 : Engine coolant and engine oil are at specified level. Spare tire, jack
and tools are in designated position.
*2 : Difference between left and right must not exceed 1°30'.
*3 : Distance between wheel center and fender brim is 402 mm {15.8 ...
Mazda 6 Service Manual: Recommendations for Shifting
Upshifting
For normal acceleration and cruising, Mazda recommends these shift points:
*1 Always observe local speed limit regulations.
Downshifting
When you must slow down in heavy traffic or on a steep upgrade, downshift before
the engine starts to overwork. This gives better acceleration w ...