In Reply to: live pto NAA posted by James Foster on October 26, 2019 at 18:21:19:
Just an fyi for you.
The tractor in the photo has live pto. Note the dual splined inputs into the transmission. The inner splined shaft drives the tractor.
The outer splined tube drives the pto. It uses a double clutch so you can stop the inner shaft but keep the outer one turning.
Your NAA has only a single input and one clutch disc which drives both the tractor and pto.
Here's a photo that might help you visualize what's going in in there.