Part Number F3136 - A New Starter Drive Bendix Spring for IH D2, D15, D30 Trucks (1937-1946), Chevrolet Trucks (1933-1937), Willys Trucks (1938-1945), Chervolet (1934-1937), Hupmobile 1940, Packard (1937-1942), Pontiac (1933-1934), Reo (1935-1936), Willys (1933-1950), Willys-Overland 1939.  OD is 2 inches, ID is 1.30 inches, Eyelets are 1.75 inches apart Center to Center. Old Number is 1848532.