GM Service Manual Online
For 1990-2009 cars only

Special Tools

CH-230-A Disc Gauge

For equivalent regional tools, refer to Special Tools.

    Warning: Refer to Brake Dust Warning in the Preface section.

  1. Remove brake pads. Refer to Front Disc Brake Pads Replacement and/or Rear Disc Brake Pads Replacement.

  2. Object Number: 2027295  Size: SH
  3. Measure remaining brake pad thickness at several points, using the CH-230-A disc gauge  (1).
  4. Compare brake pad thickness to disc brake component specifications.