GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Optra 🢒 Brakes 🢒 Antilock Brake System 🢒 Rear Wheel Speed Sensor Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1255824 Size: SH
  1. Disconnect the negative battery cable.

    2. Caution: Refer to Vehicle Lifting Caution in the Preface section.

  2. Raise and suitably support the vehicle.
  3. Disconnect the rear wheel speed sensor electrical connector.

    4. Object Number: 1255825 Size: SH
  4. Remove the rear hub unit from the knuckle assembly. Refer to Rear Wheel Bearing and Hub Replacement .

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1255824 Size: SH
  1. Install the rear hub unit to the knuckle assembly. Refer to Rear Wheel Bearing and Hub Replacement .
  2. Connect the rear wheel speed sensor electrical connector.
  3. Connect the negative battery cable.