Sorry I didnâ€™t see this before now. M/F in that year used a MF 32, MF 34 and MF 300 loaders. M/F usually only put their loaders on industrial tractors, which had heaver front ends and ECT.
135 M/F with a Perkins engine is a good all around â€œwork horseâ€ for farm work. A lot of landscapers use them with box blades also.
Go to http://www.ytmag.com/
and than click on the Massey site forum and make a post. E-mail a man by the name of â€œBig Deanâ€ (heâ€™s a frequent on the M/F site) He will give you an answer.