Replacing upper ball joints

[Terrano4x4]

Hey guys!
went yesterday to nissan because of a squeaking front end, they told me I have to replace upper ball joints, but to do that they have to replace the whole arm, is that true?
I cant see why... specially after I saw this thread http://www.navara.asia/showthread.php?t=12188
please help me with some opinions & thoughts

 

[tony d22]

Squeaking front end is not the ball joints, rather the control arm pivot joint.

 

[Terrano4x4]

thanks mate gonna take a look at that, and apparently the cv is doing some noises.
The problem with the ball joint replacement was solved…
the guy who called me made a mistake, they get the complete arms with joints and everything and gave me the price for the whole thing they can be replaced with no problems