Checking Rear Toe Angle

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2009 Volvo S60, 2008 Volvo S60, 2007 Volvo S60, 2006 Volvo S60, and 2005 Volvo S60. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Checking That Instruments Are Adjusted In Relation To Each Other On Front And Rear Axles

Courtesy of VOLVO CARS OF NORTH AMERICA.

NOTE: Always check thrust angle when checking/adjusting rear toe angle.

Check that the instruments are adjusted in relation to each other on the front and rear axles. This is extremely important so that the rear wheel toe angle can be adjusted in relation to the car's thrust line (geometric driving axis). The thrust line is the line created when the toe angles for the rear wheels are equally divided. See the figure.

The difference between the symmetry line of the wheels and the thrust line is called the thrust angle. The thrust angle must not deviate by more than a maximum of 0° 0.25° from the symmetry line of the wheels.

NOTE: The differences in the diagram are heavily exaggerated in order to illustrate the differences.

Fig 2: Checking Symmetry Line Of Wheels, Thrust Line, And Thrust Angle

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check

the symmetry line of the wheels
the thrust line
the thrust angle
Toe angle.

For the correct values for each model, see Wheel Camber, Specifications .