Sierra 1500 4WD V8-6.0L (2007)
D Height Measurement
Important: The left and right D height difference should be no more than 14 mm (0.55 in). Use the following procedure to measure the D
height.
1. Lift the rear bumper of the vehicle up about 38 mm (1.5 in).
2. Gently remove your hands and let the vehicle settle.
3. Repeat this operation 2 more times for a total of 3 times.
4. Measure between the axle bracket and jounce bumper mount bracket as shown in graphic.
5. Lift the rear bumper of the vehicle up about 38 mm (1.5 in).
6. Gently remove your hands and let the vehicle settle.
7. Repeat this operation 2 more times for a total of 3 times.
8. Re-measure the D height as in step 4.
9. The true D height is the average of the measurement from step 4 and step 8. The side to side difference in D height must not exceed 14 mm (0.55
in).
10. If any of these measurements are out of specifications, inspect for the following conditions:
*
Worn or damaged suspension components
*
Collision damage
