Corvette V8-7.0L (2007)
Z Height Measurement
3. Use the J 42854 to measure the distance between the lowest point of the ball joint (2) and the center of the front side of the lower control arm
forward mounting bolt (1). Measure both sides of the vehicle.
4. Push the front bumper of the vehicle down about 38 mm (1.5 in) then allow the vehicle to rise.
5. Repeat this operation 2 more times for a total of 3 times.
6. Use the J 42854 again to measure the distance between the lowest point of the ball joint (2) and the center of the front side of the lower control
arm forward mounting bolt (1). Measure both sides of the vehicle.
7. The true Z height dimension number is the average of the high and the low measurements. Refer to Trim Height Specifications.
Z Height Adjustment
Important: The Z trim height should be the same for the left and right side of the vehicle. The Z trim height requires adjustment if one of the
following criteria is met:
*
The measurement from either side of the vehicle is out of specification.
*
The measurements fall within specifications, but the right and left sides are not equal.
Important:
*
When adjusting the spring adjuster bolt, the J 42743 must be used to prevent damage to the rubber shear pad on the end of the bolt.
*
One complete turn of the spring adjuster bolt is equal to 2 mm (0.079 in) of trim height.
Use J 42743 (1) to relieve tension from the spring adjuster; then adjust the Z trim height by turning the spring adjuster bolt.
