He’s after BK2 CVD outer axles i.e. that go from the bone through the bearings that the wheels then mount onto so he can do the X6 droop mod.
Andy, don’t forget you need the spacers too, I think they are the xx4 front bearings spacers though it says in Chris article on 2wdrc.com, might also have part numbers which are best to quote.
You also need a CVD shim set ideally if you’ve lost the ones already on there