Ball joint failure is a real thing. It usually causes major damage and loss of control. So the calculation is about how close a person wants to get to that catastrophe. Which also endangers other people on the road.

But in this case, Nissan has given an inspection procedure. If it meets spec. why replace? What's odd is that they say that the ball joint cannot be disassembled, when, obviously, it can be.

I never knew these baljoints can be taken apart.. as they are not that expensive i always installed a new set.. less than 100 euro's a set, orig. nissan parts. (No idea what they cost these days..) With new ones your not indanger to drive other people off the road, you sleep better.. ;-)

Thanks Zed for that vid and the warning..