C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
Front Crankshaft Seal: Service and Repair
Crankshaft Front Oil Seal Replacement
Tools Required
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J41478 Crankshaft Front Oil Seal Installer
Removal Procedure
1. Remove the crankshaft balancer.
2. Remove the crankshaft oil seal (1) from the front cover.
Installation Procedure
Important: Do not lubricate the oil seal sealing surface.
Do not reuse the crankshaft oil seal.
1. Lubricate the outer edge of the oil seal (1) with clean engine oil.
2. Lubricate the front cover oil seal bore with clean engine oil.