Tools Required

Important: You may be required to remove the chamfer from the edge of an 18-mm socket in order to obtain a full socket engagement on the thin headed flywheel bolts.

You cannot balance the flywheel to the engine by rotating the flywheel, because the flywheel can only be installed on the crankshaft one way.
1. Remove the transmission assembly. Refer to Transmission Replacement in Automatic Transaxle - 4T40 - E/4T45 - E.
2. Remove the right splash shield. Refer to Wheelhouse Splash Shield Replacement in Body Front End.
3. Remove the flywheel attaching bolt while using J 38122-A . This will prevent crankshaft rotation.
4. Remove the flywheel and retainer.
5. Thoroughly remove the thread adhesive from the following locations:

•	The flywheel

•

The bolts

•	The crankshaft threaded holes

1. Install new bolts or apply adhesive/sealant compound GM P/N 123454493 or equivalent to the bolts which you are reusing.
2. Carefully follow the instructions included with the thread locking compound in order to ensure proper bolt retention.



3. Install the flywheel and the attaching bolts.
4. While holding the crankshaft balancer with J 38122-A , tighten the bolts evenly to 30 N·m (22 lb ft), + 45 degrees using J 36660-A .
5. Install the right splash shield. Refer to Wheelhouse Splash Shield Replacement in Body Front End.
6. Install the transmission assembly. Refer to Transmission Replacement in Automatic Transaxle 4T40 - E/4T45 - E.