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For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Mechanical - 7.4L 🢒 Engine Flywheel Installation

Engine Flywheel Installation Allison MF1 and MT9


    Object Number: 214309 Size: SH
  1. Install the inner engine flywheel retainer (1).
  2. Install the engine flywheel (2).
  3. Install the outer engine flywheel retainer (1).

    4. 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.

  4. Install the engine flywheel bolts (3).

    5. Tighten
    Tighten the engine flywheel bolts (3) to 88 N·m (65 lb ft).

Engine Flywheel Installation MM0, MNC, MPU, MSC, MSG, MWX


    Object Number: 363403 Size: SH

    Important: If replacing the manual transmission engine flywheel, note the location of any existing balance weights (if applicable). Install new balance weights into the new engine flywheel (if applicable). Engine flywheel balance weights must be installed into the new engine flywheel in the same locations as the old engine flywheel. A properly installed balance weight will be either flush or below flush with the face of the engine flywheel.

    Note the position and location of the manual transmission engine flywheel balance weights (if applicable).

  1. Install the engine flywheel.

    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 engine flywheel bolts.

    3. Tighten
    Tighten the engine flywheel bolts to 88 N·m (65 lb ft).