Sierra Classic 2500 4WD V8-8.1L (2007)
Flywheel: Service and Repair
Engine Flywheel Replacement
Removal Procedure
1. If equipped with a automatic transmission, remove the transmission. Refer to Transmission Replacement for the 4L80-E transmission, or
Transmission Replacement (With 6.6L Engine) Transmission Replacement (With 8.1L (L18) Engine) for the Allison transmission.
2. Remove the engine flywheel bolts.
3. Remove the engine flywheel.
4. If equipped with a manual transmission, remove the clutch assembly. Refer to Clutch Assembly Replacement.
5. Remove the engine flywheel bolts.
6. Remove the engine flywheel.
7. Clean and inspect the engine flywheel. Refer to Engine Flywheel Cleaning and Inspection (Automatic Transmission) Engine Flywheel Cleaning
and Inspection (Manual Transmission).
Installation Procedure
Important: Make sure the flywheel is installed correctly. "Engine Side" is stamped on the flywheel to aid with installation.
1. If equipped with a manual transmission, Install the engine flywheel.
