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The ATI crankshaft damper is a 6.78-inch aluminum three-ring unit with a 6-groove pattern and an aluminum hub offered with a 10% underdrive option. It reduces crankshaft vibrations and accommodates accessory drive needs while keeping weight low. Intended for LS1/LS2/LS3/LS6 engines (1997–2013) in Y‑body applications without air conditioning when specified.
ATI Damper - 6.78in - AL - 6 Grv - 10 Per UD - LS1/2/3/6 - 97-13 - Y Body - No A/C - AL Hub - 3 Ring
