S2 prop shaft “sealed for life” spline boot replacement.

[Ropariva]

In preparation for the return of my engine, I’ve removed my prop shaft to refurbish. I’d ordered the uni joints and replacement rubber gaiter/boot as shown in all the parts manuals only to find my spline assembly has a totally different, “sealed for life” spline end and boot. The only mention of this type of prop shaft I could find in my research was Chris Vines blog in which this was left untouched. Sadly I need to replace mine as it is split and I have now removed it and refurbished the unit. Does anyone know if this boot is available as a spare part, or if not has anyone made a suitable replacement for the exposed splines.
From the parts list. Note the spline assembly is very different

From Chris Vines blog

My assembly ...note the very different boot arrangement.

My propshaft prior to stripping.

What’s left of my boot and the ring that retains it in the main shaft

[abowie]

I reckon I used a bit of bike tube.

[Ropariva]

Good old Aussie ingenuity Andrew. The more I think about it, the simpler the problem gets. Reckon that’s probably what my dad would have said too.
Off to a bike shop tomorrow

[abowie]

I think we used some superglue to hold the tube inside the main tube and I think we were able to reuse the original metal strap that holds the other end. It was 6 years ago though on my S1.5 so the details aren't fresh in my mind. The length of the rubber is obviously fairly critical too.