Clunking noise when turning steering wheel

[Col.T]

G'day Oddy
don't reckon I can help you but a couple of thoughts.
What model/year wagon you got? Looks like a GU but what year?
A few details under the personal profile may let us know a bit more about you and the wheels.
You say the photos are of the problem but I'm not sure I can see anything wrong. Can you jack the front end up, secure it (and make bloody sure you do) then get underneath while someone turns the wheels from one limit to the other both with the motor/power steering running and without? Can you hear it or only when the full weight is on the wheels? Can you pin point precisely where the noise comes from? Is it any different in 4WD to 2WD? Have you checked every connection in ALL the steering gear to ensure nothing is loose? Power steering fluid is at correct level?
Is the clunk a regular/steady noise or erratic? Does it go away partway around the corner or stay as long as you're turning? Can you feel anything different through the steering wheel?
Have you done any work on the front end lately? (May sound dumb but I've just recently had a puddle of front diff oil under my front offside wheel after I did a major service. You'd think after doing that job over about 40 years you'd never get caught with a dopey stuff up like that but I now know it's easy).
Let's know how it goes and with a bit of luck one of the gurus will have an answer for you.
Luck
Col