GM Service Manual Online
For 1990-2009 cars
Makes 🢒 Chevrolet 🢒 2004 🢒 C-Series Medium Duty Truck C6/7/8 - Mexico 🢒 Brakes 🢒 Air Drums 🢒 Front Cam Brake Assembly Replacement

Removal Procedure
  1. Block the rear wheels.
  2. Drain the air reservoirs. Refer to Draining Reservoirs .
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Remove the tire and the wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

    5. Object Number: 201766 Size: SH
  5. Remove the Air Drum. Refer to Brake Drum Replacement .
  6. Remove the wheel hub. Refer to Front Wheel Hub, Bearing, and Seal Replacement in Front Suspension.
  7. Remove the air line from the front air brake chamber. Refer to the appropriate procedure in Air Brakes.
    8. •  Hose and Line Replacement - Nylon and Metal Compression
    •  Hose and Line Replacement - Nylon Push-In Type Fitting
    •  Hose and Line Replacement - Flexible
  8. Remove the wheel speed sensor, if equipped. Refer to Front Wheel Speed Sensor Replacement in Antilock Brake System.
  9. Remove the bolts and the washers.
  10. Remove the front brake assembly from the knuckle.

Installation Procedure

    Object Number: 201766 Size: SH

    Caution: Avoid taking the following actions when you service wheel brake parts:

       • Do not grind brake linings.
       • Do not sand brake linings.
       • Do not clean wheel brake parts with a dry brush or with compressed air.
    Some models or aftermarket brake parts may contain asbestos fibers which can become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment is available commercially in order to perform this washing function. These wet methods prevent fibers from becoming airborne.

  1. Install the front brake assembly to the knuckle.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the washers and the bolts.

    3. Tighten
    Tighten the front brake assembly bolts to 280 N·m (206 lb ft).

  3. Install the wheel speed sensor, if equipped. Refer to Front Wheel Speed Sensor Replacement in Antilock Brake System.
  4. Install the air line to the front air brake chamber. Refer to the appropriate procedure in Air Brakes.
    5. •  Hose and Line Replacement - Nylon and Metal Compression
    •  Hose and Line Replacement - Nylon Push-In Type Fitting
    •  Hose and Line Replacement - Flexible
  5. Install the wheel hub. Refer to Front Wheel Hub, Bearing, and Seal Replacement in Front Suspension.
  6. Install the air drum.
  7. Adjust the front wheel bearings, if needed. Refer to Wheel Bearing Adjustment in Rear Drive Axle.
  8. Install the tire and the wheel assembly. Refer to Tire and Wheel Removal and Installation in Tire and Wheels.
  9. Remove the safety stands and lower the vehicle.
  10. Start the engine.
  11. Charge the air system to the air compressor governor valve cut-out point.
  12. Check for the proper brake operation.
  13. Stop the engine.
  14. Set the parking brake.
  15. Remove the wheel blocks.