Nissan told me that the standard one of the Patrol can take 10 tons for recovery!!
Take that original fitting off and inspect it! Have a good look at those welds.
I do not for one moment believe that fitting will take the load repeatedly. It is just too light and the welds just don't seem to be adequate. I am not an engineer and others will differ with me, but I will stick to my guns. To this end I have fitted Tinus' fitting which is far more robust and load tested by PC.
Thanks Tinus and PC.