IH Oak go to the construction equipment board on this forum, there is a guy working on a TD-9 doing the same thing as you, at least read it and there are pictures.
DWF
I had a 68 F1800 Loadstar years ago. It had a 345 with a 4 barrel carb. The guy I bought it from had bought a new or rebuilt 345 short block. Since the truck originally had a 392 with a 4 barrel, the guy installed the old manifold and 4 bbl carb on the 345. At least that;s the story he told.
DWF
Welcome to the Red Power forums! It looks as though you have a nice project to look forward to. Once you get going on your project don't forget to post on the construction equipment site here as that's where most of the dozer guys hang out.
DWF