S13 steering jerking issue...please help

[HiI'mDustin]

I recently got my first 240sx and ordered a bunch of parts to do my 2jz swap...I decided to put the swap on hold until I can find out what the issue is.

Here is the issue. When I am driving the car and turn the steering wheel slightly the whole car jerks hard to whatever direction i am steering. This isnt a driver error I have been racing cars for a while now and ive never had his issue. It seems to do it more often when i am at higher speeds(40-70mph) I would really appreciate any advice I could get on this subject.

What I have done
Ive replaced the strut rod bushing so far.

What my plans are
I am getting a energy suspension master bushing kit and lower ball joints if it dosent come with them

Please help me out

[moso]

my s13 did this for a while after i moved into the new shell, ended up being air in the steering rack.

[HiI'mDustin]

my s13 did this for a while after i moved into the new shell, ended up being air in the steering rack.

How did you solve that?