K 3500 Truck 4WD V8-6.6L DSL Turbo VIN 1 (2001)
1. For vehicles equipped with a torsion bar suspension turn the bolt (1 ) that contacts the torsion arm clockwise to raise the and counterclockwise to
lower the height adjustment. One revolution of the bolt (1) into the nut increases the Z height by approximately 6.0 mm (0.2 inch).
2. For vehicles without torsion bars, replace damaged or worn components as necessary.
D Height Measurement
The D height dimension measurement determines the proper rear end ride height. There is no adjustment procedure. Repair may require replacement of
suspension components.
1. With the vehicle on a flat surface, lift upward on the rear bumper 38 mm (1.5 inch).
2. Gently remove your hands. Allow the vehicle to settle into position.
3. Repeat the jouncing operation 2 more times for a total of 3 times.
4. Measure the D height by measuring the distance between the bumper bracket and the top of the rear axle tube.
5. Push the rear bumper downward to 38 mm (1.5 inch).
6. Gently remove your hands. Allow the vehicle to settle into position.
7. Repeat the jouncing operation 2 more times for a total of 3 times.
8. Measure the D height dimension.
9. The true D height dimension number is the average of the high and the low measurements. Refer to Trim Height Specifications.
10. If these measurements are out of specifications, inspect for the following conditions:
-
Sagging front suspension Refer to Front Coil Springs Replacement or Torsion Bar Replacement.
-
Sagging rear leaf/coil springs Refer to Leaf Spring Replacement or Coil Spring Replacement.
-
Worn rear suspension components, such as leaf spring bushings Refer to Spring Bushing Replacement.
-
Improper tire inflation Refer to Tire Inflation Pressure Specifications.
-
Improper weight distribution
-
Collision damage
