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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1119 (Suspension System General Diagnosis) >> Diagnostic Information and Procedures >> Trim Height Inspection Procedure >> Measuring the Z Dimension (Front Suspension)

Measuring the Z Dimension (Front Suspension)

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Measuring The Z Dimension (Front Suspension)
GM629099Courtesy of GENERAL MOTORS CORP.
  1. Use your hands in order to lift the front bumper of the vehicle up approximately 38 mm (1.5 in). Gently remove your hands in order to allow the vehicle to lower.
  2. Use your hands in order to push the front bumper of the vehicle down approximately 38 mm (1.5 in). Remove your hands in order to allow the vehicle to rise.
  3. Measure the Z dimension for the left and right side of the vehicle. The Z dimension is the vertical distance measured between the centerline of the lower control arm bolt (1) and the bottom of the ball joint.
  4. Replace the front springs to correct low front trim height as necessary.