Yeah, that's for the little shaft that's inside the ns of the diff.

Ended up taking the diff off complete with the os shaft still in, stripping out the little shaft, then twatted the shaft out from inside the diff. Inner CV was worn and was leaking from the diff seal, so fitting new inner joint once it arrives... £513 + vat for just the inner joint!

Proper shit job as truck is used in a quarry