I am trying to figure out what my chasis number is based on my vehicle ID and VIN. The ID# is WDB1240341C1244245 and the VIN is WDBEA36RC124424. Is the chasis number the last seven of the ID # (1244245) or the last six of the VIN (124424)?

Thanks.

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles