90hatchsi

Guys, I need you help. I wanna make the ride quality a little more comfortable. Could I use 90-93' teg front lower control arms; will they make a difference? If I use the controls arms do I need the whole brake assembly? What about axles from a teg ? Will they help? Right now I'm running on KYB AGX and eibach springs, 14" stock steelies and a strut bar.

Also my steering wheel often jerks every now and than; (no particular side) could my ball joints be busted?

It kinda worries me that one day I won't grip the wheel enough and loose control.
Basically the front feels kinda weak, that's the best way I could explain it.

Thanks guys your expert advice would be greatly appreciated.