Clutch withdrawn sleeve seal in suffix F gearbox

[Aaron IIA]

I am curruntly rebuilding a suffix F gearbox. The clutch withdrawl sleeve in these gearboxes differs to those of earlier boxes. Instead of having a spiral cut into the input shaft, there is a seal inside the clutch withdrawl sleeve which runs against the smooth input shaft. I am having difficulty in determining how this seal is removed. My manual only shows the earlier, more common spiral version. Has anybody ever changed this seal before?

Aaron.

[wagoo]

The seal is quite bendable and is retained in the sleeve with a steel ring. Poke a thin sharp probe into the seal and winkle it out from behind the ring. then with a suitable shaped drift of softer metal, remove the ring.
Bill.

[Aaron IIA]

The seal that I have is not bendable at all, it is just crumbling. I will continue to break it out then.

Aaron.