What mower type/series/model is your Toro?
500 SERIES - 74242, 74243, 74244, 74245, 74246, 74255, 74261, 74262, 74263, 74271, 74272, 74273, 74282, 74283 & 74284
400 SERIES - 74413, 74414, 74415, 74416 & 74417
Z100 SERIES