How to change front lower control arms?

[i0shez0i]

Does anyone know of where to get cheap front lower control arms and if those off of a 300zx or 240sx work on a j30? Also what is the process to change them?

[swimshark]

What are you changing to? The ball joints are different between all 3 cars. All you have to do is remove nuts off tension rod, remove bolt that connects arm to subframe and pop the balljoint out of the front strut. Control arm then just drops out.

[i0shez0i]

My front control arms are bad and new OEM ones are way over priced. I was wondering if I could use either a 300zx's or 240sx's lower control arm and simply have a correct ball joint pressed in. What would be the best way of replacing them in a cost effective way?