Avalanche 2500 4WD V8-8.1L VIN G (2003)
Front Crankshaft Seal: Service and Repair
Crankshaft Front Oil Seal Replacement
Tools Required
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J42851 Front Cover Oil Seal Installer
Removal Procedure
1. Remove the crankshaft balancer.
Important: Use care as not to damage the engine front cover or the crankshaft sealing area when removing the crankshaft front cover oil seal.
2. Remove the crankshaft front cover oil seal.
Installation Procedure
1. Lubricate the outer sealing surface oft he crankshaft front oil seal lightly with clean engine oil. DO NOT lubricate the inner portion of the seal.
2. Position the NEW seal in the front cover so that the dimple (1) on the rear of the seal is in the 12 o'clock position.
3. Using J42851 install the oil seal.
4. Remove the J42851.
5. Install the crankshaft balancer.