Envoy Steering and Suspension Alignment | Ride/Trim Height Inspection
3. Measure the D height by measuring the distance between the jounce bumper bracket and the top of the rear axle tube.
4. Repeat the jouncing operation and measurement 2 more times for a total of 3 times.
5. Use the highest and lowest measurements to calculate the average height.
6. The true D height dimension is the average of the highest and lowest measurements.
Cross vehicle D heights should be within 12 mm (0.5 inch) for vehicles equipped with coil springs, vehicles equipped with air suspension should
be within 8 mm (0.3 inch).
7. If these measurements are out of specifications, inspect for the following conditions:
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Sagging rear suspension.
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Collision damage.