GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Chevy P32 RV/Van Chassis 🢒 Engine 🢒 Engine Mechanical - 7.4L 🢒 Engine Flywheel Replacement

Removal Procedure

    Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable .
  2. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the transmission from the vehicle.

    4. Refer to the following procedures:

    •  Transmission Replacement (Automatic),
    •  Transmission Replacement (Manual).

    Object Number: 34060 Size: SH
  4. Remove the clutch assembly from the crankshaft, if equipped. Refer to Clutch Assembly Replacement .

    5. Object Number: 64987 Size: SH
  5. Remove the flywheel from the crankshaft.
  6. Remove any burrs from the end of the crankshaft.

Installation Procedure

    Object Number: 64554 Size: SH
  1. Install the flywheel to the crankshaft.

    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 flywheel mounting bolts.

    3. Tighten
    Tighten the bolts to 90 N·m (66 lb ft).


    Object Number: 34060 Size: SH
  3. Install the clutch to the flywheel. Refer to Clutch Assembly Replacement .
  4. Install the transmission to the vehicle.

    5. Refer to the following procedures:

    •  Transmission Replacement (Automatic).
    •  Transmission Replacement (Manual).
  5. Remove the safety stands and lower the vehicle.
  6. Connect the battery negative cable.