Shaft for lightweight double cardan joints

[Cynan]

Hi all,

I’ve recently acquired some lightweight joint casings (42320) and cross joints (42319) for a set of double cardan joints I have but the shaft doesn’t fit. The lightweight parts appears to need a thinner shaft as the holes are too small?

Has anyone else used these and know what shaft to use?

Thanks.

[Cynan]

I think it’s these I need  42221.

Love being able to check part numbers from online copies of manuals!