A-frame ball joint hasn't yet been replaced, however local L/R dealer inspected at last service: all okay. I have also crawled underneath and rattled it around with a pry bar, even hasd someone bounce on the rear bumper. The "clonk" in question doesn't seem to be coming from there.
Anyway, as it got noticably worse with a heavier spare on the rear door I started looking up references and found this:
rear door needs adjusting... - LR4x4 - The Land Rover Forum
Still, I will keep you all posted on whether I get rid of the "Clonk"
Cheers
Jason
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