GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Engine 🢒 Engine Electrical 🢒 Engine Flywheel Replacement

Removal Procedure
  1. Disconnect the battery negative cable from the battery. Refer to Battery Cable in Engine Electrical.
  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. • For the automatic transmission,. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
    • For the manual transmission. Refer to Transmission Replacement in Transmission/Transaxle.

    Object Number: 34060 Size: SH
  4. Remove the clutch assembly from the crankshaft if equipped. Refer to Clutch Assembly Replacement in Transmission/Transaxle.
  5. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Removal .
  6. Remove any burrs from the end of the crankshaft.

Installation Procedure
  1. Install the flywheel to the crankshaft.

    2. Object Number: 64554 Size: SH

    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 (65 lb ft).


    Object Number: 64525 Size: SH
  3. Install the flywheel (manual) to the crankshaft.

    4. Tighten
    Tighten the bolts to 90 N·m (65 lb ft).


    Object Number: 34060 Size: SH
  4. Install the Clutch to the flywheel. Refer to Clutch Assembly Replacement in Clutch.
  5. Install the transmission to the vehicle.
    6. 5.1. For the automatic transmission. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
    5.2. For the manual transmission. Refer to Transmission Replacement in Transmission/Transaxle.
  6. Connect the battery negative cable to the battery. Refer to Battery Cable in Engine Electrical.