3″ Spool fits 1-1/8″ square axle with square hole (old style). For Case IH disc models with 9″ spacing. Compatible with International Drill(s) 150. Compatible with International Tillage(s) 46, 48, 60, 61, 76, 120, 130, 132, 150, 330, 470, 480, 490, 610.