Thank you for your response.
Just Googled the Transmission reference as "Toro Groundmaster 48-1790" and found this exploded Parts Diagram information. Hope it helps:-
http://www.ajsrepairandservice.com/pages/OemParts#%2fToro_Commercial_Equipment%2f30782%2c_Groundsmaster_322-D%2c_1985_(SN_50001-59999)%2fTRANSMISSION_ASSEMBLY_(48-1790)%2f30782-15718-1985%2f3312-444-444A0019-00017
Still not sure of the manufacturer, but if I found more information, I'll post it up for you.
Last edited by Bushy260; 22/03/16 09:04 AM. Reason: Tried to add as URL link.
