Power steering box leak

I know there are lots of posts about these leaks but after searching I can't find the answer so decided to start a thread.
Steering had about 2 inches of play in it but after checking all the usual joints all were found to be ok so I adjusted it on steering box.
My steering is now better than it's been as long as I've owned the landy but I have developed a slight leak which is seeping up between the adjustment nut and the Allen key bolt. Is there a seal here that I need to replace? Before I loosened them to adjust it the box was completely dry. Hope someone can shed some light on this.
1999 discovery 2 td5 manual.
TIA Cookie

Hi, Does this diagram help?
https://www.advancedfactors.co.uk/steering-box--drop-arm-1725-c.asp
Griff

Thanks for reply landmark2,
This is where its leaking. Ive found an exploded view that shows it as adjustment nut and seal but on checking it's just a standard nut....

@Cookie99

Not sure on the seal, but i would recommend you remove your postcode from your location.

Cheers

neilly said:

@Cookie99

Not sure on the seal, but i would recommend you remove your postcode from your location.

Cheers

Click to expand...

Thanks neilly didnt.know it showed up but I have done now