will this work

[kohlburner]

Found a 2 point fast hitch that came off a 350 farmall. Wanting to buy it to put on my c farmall. Will it bolt up or are they different?

 

[stowester]

If I remember correctly we had a set of shims, about 1/4x1x16 that slipped into the 450 receiver when we put the super C equipment on it. Although that doesn't answer your question ....

 

[Mendonsy]

I am reasonably sure that the mounting dimensions are different. The 350 is from the 'H' family so it has a heavier rear end housing, same as the 450 I think.
You could probably make it work, but it will require some modifications.