Yes these are basically your 861 Ford from like 58-62 that were gray and red. 63-64 they were painted blue. In 1965 they went to the three cylinder engine and with hydraulic driven PTO's and 8 speed transmissions.
The 5 speed like yours most likely has the double clutch with the very bottom managing the PTO engagement and release if there are two sets of pin holes at the transmission housing where the clutch pedal connects to the throw out bearing fork.
The 901 was used for two row corn pickers and other special apps. They can crush you in a heart beat unless they have the wide front end since their center of gravity is nothing like most Fords of that day. Years ago you would see the wide frontends laying around but I expect most have been melted by now.
Some blue tractors labeled 4000 and are four cylinder are older than 1963 because they were just painted blue and the 4000 decals were used vs the 800/900. That was about all Ford did in 63-64 as they conditioned the market for the major change in 1965.
I take it you have not yet had your hand broken by a "spinner" on a tractor without power steering. To this day I drive a tractor with my thumbs on the outside of the steering wheel. Some know what I am talking about.
