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The ACL crankshaft main bearing set notes an alternate reference for use when stock is exhausted and supplies the main shells needed in bottom-end rebuilds. Install the recommended replacement part to restore correct oil clearance and rotational stability for the crankshaft. Fit during engine overhaul to recover smooth operation, proper journal support and to reduce wear from deteriorated mains.
ACL WHEN STOCK EXHAUSTED USE 5M1533A-.75 Engine Crankshaft Main Bearing Set
