Hi, I have and old 1975-76 Massey-Ferguson MF 16 hp with a Kohler 1 cylinder engine. I need the belt for the rear rototiller. I don't know the # because I don't have the old strap. I have a new strap for the snow blower in front, a new strap for the mower but not for the rear tiller. At MF, they don't list it anymore. Thanks for an answer.