Sierra Classic 2500 4WD V8-6.0L (2007)
7. Install the dial indicator at the idler arm.
8. Push the tire inward slowly with one hand to remove any lash. Zero out the dial indicator and pull outward in order to take a reading.
9. Allow only 1 mm (0.039 inch) of movement at the idler arm ball stud. If more than 1 mm exists, replace the idler arm.
10. Lower the vehicle.
