The ATI crankshaft damper is an aluminum 7.074-inch, three-ring front damper for the 1987 Buick Grand National turbo V6, specified for internal balance. It mirrors the OEM internal-balance configuration for that application. This damper is intended for Grand National owners seeking a direct-fit internal-balance front damper to match original crank balance and damping characteristics.
ATI Damper - 7.074in - Alum - 1987 Buick Grand National Turbo V6 -int Bal - 3 Ring