GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise the vehicle on a hoist. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 583907  Size: SH
  3. Disconnect the rear brake lines (1) from the proportioning valve (2). The proportioning valves (2) are located at the rear left side of the vehicle.
  4. If removing both of the proportioning valves mark the brake lines for correct installation.
  5. Plug the brake lines to avoid brake fluid loss and brake fluid contamination.
  6. Remove the proportioning valve (2) from the vehicle.

Installation Procedure


    Object Number: 583907  Size: SH
  1. Install the proportioning valve (2) to the vehicle.
  2. Connect the brake lines (1) to the proportioning valve (2).
  3. Tighten
    Tighten the brake line nuts to 27 N·m (20 lb ft).

  4. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.