O.K today's play time.
I made up simple tooling to press the Female spline adapter thingy off, it took a bit to budge, but once moving went easy enough. 20 ton press there.
Beside the circlip is what's left of a seal.
I didn't even try to undo the lock ring that locates the bearing.
So once again I say, we won't be duplicating this assembly.
The cost of machining this shaft with a pinion, two precision ground bearing positions and a spline, just ain't gunna happen.
As Warp has said an improved ratio 5th gear set is not an option, so it's down to an improved ratio output gear set.
When I get that far into "Lazereth" I'll look at what it takes to modify these.