Impala V6-3.9L (2007)
2. Turn the adjusting nut to change the toe angle.
3. Adjust the toe to the proper setting. Refer to Wheel Alignment Specifications.
Notice: Refer to Fastener Notice.
4. Tighten the jam nuts on the rear wheel spindle rod - rear.
Tighten the rear wheel spindle rod end jam nuts to 70 N.m (52 lb ft).
Trim Height Inspection
Trim Height Inspection
Trim Height Measurements
Trim height is a predetermined measurement relating to vehicle ride height. Incorrect trim heights can cause bottoming out over bumps, damage to the
suspension components, and symptoms similar to wheel alignment problems. Check the trim heights when diagnosing suspension concerns and before
checking the wheel alignment.
Perform the following before measuring the trim heights:
1. Set the tire pressures to the pressure shown on the certification label. Refer to Label - Vehicle Certification, Tire Place Card, Anti-Theft and
Service Parts ID.
2. Check the fuel level. Add additional weight if necessary to simulate a full tank.
3. Make sure the rear compartment is empty except for the spare tire.
4. Make sure the vehicle is on a level surface, such as an alignment rack.
5. Close the doors.
6. Close the hood.
7. All dimensions are measured vertical to the ground. Trim heights should be within 13 mm (0.5 in) to be considered correct.
Z Height Measurement
The Z height dimension measurement determines the proper ride height for the front end of the vehicle. There is no adjustment procedure. Repair may
