STS RWD V8-4.6L (2007)
1. Ensure the engine block where the crankshaft rear oil seal is installed is a deep bore (1).
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A deep bore of approximately 15 mm (0.5906 in) was used on engines from March 1, 1996 and later.
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A shallow bore of approximately 8 mm (0.3150 in) was used on engines from 1993 thru February 29, 1996. This block would use a lip-style
crankshaft rear oil seal and the J 38817-A for installation.
2. Inspect the engine block bore (1) and the crankshaft flange (2) for the damage. Repair or replace any damaged components.