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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 D Dimension (Rear Suspension)

Measuring the D Dimension (Rear 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 D Dimension (Rear Suspension)
    GM629100Courtesy of GENERAL MOTORS CORP.
  1. Use your hands in order to lift the rear 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 rear bumper of the vehicle down approximately 38 mm (1.5 in). Remove your hands in order to allow the vehicle to rise.
  3. Fig 2: Measure The D Dimension RH & LH Side
    GM629103Courtesy of GENERAL MOTORS CORP.
  4. Measure the D dimension for the left and right side of the vehicle.
    • The D dimension for front wheel drive vehicles is the vertical distance measured between the frame rail and the rear axle.
    • The D dimension for all wheel drive vehicles is the vertical distance measured between the horizontal centerline of the lower control arm bolt (1) and the bottom of the ball joint (2).
  5. Replace the rear springs to correct low rear trim height as necessary.