Steel; 2.500 in. O/a lg; 0.688 in. Minor od; 1.000 in. Major od; 9 teeth on drive gear; 0.750 in. Lg of gear; 0.469 in. Id of first end; 0.781 in. Id of second end; 1.906 in. Largest od of cluthc; 0.625 in. Lg of largest od; 0.969 in. Od of second end, 1.312 in. Lg of second end