John F.,
That would look to be a very nice find! Let me know what you find (and what you are looking for) when you get underneath it. Once you have done that, and after I get past next weekend (the last of several in a row with something significant going on for me...), perhaps I can crawl under mine and look for something similar.
I am also interested in the oil and fuel filter layout on your tractor. Mine needs to be completely redone as it has a replacement engine, and doesn't currently have a mounted engine oil filter. Mine also has the earlier throttle between the legs instead of up on the steering column. That is looking to be a bit of an issue with how mine is currently laid out. I have taken photos of the oil and fuel filter set-ups on several M-H 55 diesels. They aren't all the same, but I have been narrowing-in on what appears to be the most common set-up.
Look forward to your next post / update on your tractor.
Cheers,
JB