GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Optra 🢒 General Information 🢒 General Information 🢒 Rear Brake Caliper Replacement

Removal Procedure

    Object Number: 1290040 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Mark the position of the rear wheels relative to the wheel hubs and remove the wheels. Refer to Tire and Wheel Removal and Installation .

    3. Caution: Refer to Brake Dust Caution in the Preface section.

    Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

    Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.


    Object Number: 1290042 Size: SH
  3. Remove the fitting and the washers that attach the brake hose to the caliper.
  4. Disconnect the brake hose. Plug the openings in the caliper and the brake hose to prevent fluid loss or contamination.
  5. Remove the caliper mounting bolts.
  6. Remove the caliper.

Installation Procedure
  1. Ensure the slide pins are lubricated with Silicone Brake Lubricant, GM P/N 89021536, ACDelco P/N 89021537 (Canadian P/N 89021538), or equivalent. If necessary, refer to Rear Brake Caliper Overhaul .

    2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1290042 Size: SH
  2. Install the caliper assembly with the mounting bolts.

    3. Tighten
    Tighten the caliper mounting bolts to 56 N·m (41 lb ft).


    Object Number: 1290040 Size: SH
  3. Install the brake hose to the caliper with the washers and the brake inlet hose fitting.

    4. Tighten
    Tighten the brake hose inlet fitting to 32 N·m (24 lb ft).

  4. Install the rear wheels. Refer to Tire and Wheel Removal and Installation .
  5. Lower the vehicle.

    6. Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure to obtain a firm pedal before moving vehicle may result in personal injury.

  6. With the engine OFF, gradually apply and release the brake pedal several times in order to position the caliper piston and the pads.
  7. Bleed the brake system. Refer to Hydraulic Brake System Bleeding .