Hi, Thanks for the reply.
I assume that's what its called; its just a metal rod with a black plastic cog on the end with 15 teeth on it.
I have also found out why the Peugeot transfer box stripped the teeth off it; The Citroen transfer box's cog has 15 teeth & the Peugeot one has 13!
I have had no luck finding anything yet; I have been to 4 engineering places & they all say they can't do anything with it.
I have looked in all my gearboxes to try to find a cog the same, to no avail. The cog in the automatic gearbox out of my BX is the same as the 2wd manual, so I can't use that.
Would it be possible to modify a 2wd setup & use it in the transfer box? I'm running out of ideas now.
Someone must have a cog in a scrap transfer box?

1992 Citroën BX 1.9 Diesel Meteor 4x4 - The Project.
1992 Citroën BX 1.9 TXD (with GTI engine; Mulleys old car) - Parts car.
2004 Citroën Xsara Desire. (Now gone).
2016 Ford Focus Zetec - Daily Driver. (Absolute bone shaker).