Avalanche 1500 2WD V8-5.3L VIN Z Flex Fuel (2005)
Alignment: Service and Repair
Front Caster and Camber Adjustment
Front Caster and Camber Adjustment
1. Important: Caster measurements or valves must be compensated for the measured frame angle.
Caster is relative to frame, the caster values must be compensated for the measured frame angle by using a digital protractor or equivalent on a flat
portion of the frame in front of the rear tire.
2. Frame angle is positive when higher in the rear. Measure both sides of the frame and take an average from those measurements. Then add the
average frame angle to the caster reading when making adjustments.
3. Frame angle is negative when lower in the rear. Measure both sides of the frame and take an average from the measurements. Then subtract the
average frame angle from the caster reading when making adjustments.
4. The caster and camber adjustments are made by rotating the offset cam bolt and the cam in the slotted frame bracket in order to reposition the
control arm.
Important: Before adjusting the caster and camber angles, jounce the front bumper three times to allow the vehicle to return to normal height.
Measure and adjust the caster and the camber with the vehicle at curb height. The front suspension Z dimension is indicated in Trim Heights. Refer
to Trim Height Inspection Procedure in Suspension General Diagnosis.
For an accurate reading, do not push or pull on the tires during the alignment process.