In Reply to: Re: 53 Jubilee PTO won't engage posted by Joe Suddeth on November 12, 2020 at 12:02:48:
I'm thinking it's unrelated to your having split the tractor for the clutch.
I would remove the round cover where the pto handle is and have a look inside.
I'm not as well versed on those as the later tractors but the handle generally just moves a sliding coupler that connects the pto shaft to the output shaft on the back end of the transmission.
It is a very simple mechanism actually.
The coupler is likely under the oil in there so you'll need to drain the oil in the rear end first.