Does anyone know if the decks are interchangeable on th C-81 and B-80 lawn tractors. As I understand it the B-80 (circa 1974-1975) uses a
36" side discharge (part # 5-0721) or a 36" rear discharge (part#
5-0621) tach-o-matic. I think the C-81 is a 1978-79 mfg date.