GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Brakes 🢒 Air Drums 🢒 Rear Air Brake Chamber Replacement

Removal Procedure
  1. Remove the rear air brake chamber clevis. Refer to Rear Air Brake Chamber Clevis Replacement .
  2. Remove the air line from the rear air brake chamber assembly. Refer to Hose and Line Replacement - Nylon and Metal Compression in Air Brakes.

    3. Object Number: 296223 Size: SH
  3. Remove the mounting nuts and the washers from the rear air brake chamber assembly.
  4. Remove the air brake chamber assembly from the brake chamber/camshaft support bracket.

Installation Procedure
  1. Install the air brake chamber assembly to the brake chamber/camshaft support bracket.

    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.


    Object Number: 296223 Size: SH
  2. Install the mounting washers and the nuts to the air brake chamber assembly.

    3. Tighten
    Tighten the rear air brake chamber assembly mounting nuts to 108 N·m (80 lb ft).

  3. Install the clevis.
  4. Install the air line to the rear air brake chamber assembly. Refer to Hose and Line Replacement - Nylon and Metal Compression in Air Brakes.