Balance Shaft Removal

Remove the balance shaft drive gear.

Fig 1: Balance Shaft Drive Gear
Courtesy of GENERAL MOTORS CORP.

Important: The balance shaft drive and balance shaft driven gears are serviced as a set. The set includes the balance shaft driven gear bolt.
Remove the balance shaft driven gear bolt from the balance shaft.
1. 2.1. Use a wrench in order to secure the balance shaft.
  Place the wrench onto the balance shaft near to the balance shaft front bearing.
2. 2.2. Remove the balance shaft bolt.
3. 2.3. Remove the wrench from the balance shaft.
Remove the balance shaft driven gear from the balance shaft.

Fig 2: Balance Shaft Driven Gear & Bolt
Courtesy of GENERAL MOTORS CORP.
Remove the bolts and the balance shaft retainer.

Fig 3: Balance Shaft Retainer
Courtesy of GENERAL MOTORS CORP.

Important: The balance shaft and the balance shaft front bearing are serviced only as a package. Do not remove the balance shaft front bearing from the balance shaft.
Use a soft-faced hammer in order to remove the balance shaft from the engine block.

Fig 4: Removing Balance Shaft Using Soft-Faced Hammer
Courtesy of GENERAL MOTORS CORP.