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The ATI shell assembly is a 7.074-inch steel shell designed for the 1987 Buick Grand National external-balance crank. It supports the corresponding damper system and matches the external balance requirements of the turbo V6. Use this shell when rebuilding the damper assembly on a Grand National to restore the correct external-balance configuration.
ATI Shell Assy - 7.074 - Steel - 1987 Buick Grand National Ext Bal
