I will have to check tomorrow to be sure on these. I know the hydro control shaft is a different size ID, and they may be the 3/4" ID, with the lift shaft being 5/8" ID. With these measurements, I can see if they will fit. The ID can be machined out to 5/8" if needed. I have an old MF14 frame with the lift shaft still in it to go by.
These bushings will fit the MF 14/16. When I did my 14 rebuild last year those are the same ones I used. Olcowhand is correct the lift shaft is 5/8", I just bought a 5/8" drill bit drilled them out and installed them back in the tractor. The only hard part is getting the old lift shaft out of the tractor, after a lots of PB blaster the brackets still wouldnt move on the shaft. I ended up prying the frame out far enough to get the lift shaft out and going to the press to get the brackets off.
I stumbled onto these just doing an image search for an old Dynamark like Dad had when I was a kid. These sure look like the same as the massey MF14/16 lift rock-shaft bushings. If I remember right, the MF ID is 3/4", so they may be a match. They have the flat side & all. They appear identical. Here's the webpage link.