Callies Crankshaft - Apex Series - 4.250 in Stroke - Internal Balance - 58X Reluctor - Forged - Steel - 1-Piece Seal - GM LS-Series - Each-APP-31V-AS--Notes: 2.100 Rod Pin, 58-Tooth Reluctor Wheel State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO