2 pages 85.06KB Dated April 1981 Service assembly SA #105147 Also see PSB #217 103029 drive coupling 1973 18hp Auto model 1-0600 1973 18hp Auto model 1-0601 1973 18hp Auto model 1-0610 1973 18hp Auto model 1-0620 1974 D-160 Auto model 1-0650 1974 D-180 Auto model 1-0611 1974 D-200 Auto model 1-0630 1975 D-160 Auto model 1-0651 1975 D-180 Auto model 1-0612 1975 D-200 Auto model 1-0631 1976 D-160 Auto model 61-16OS01 1976 D-160 Auto model 61-16OS02