steering prob.? mabe?

[iwishiwas-all*]

hey all i got a question. my 91 240sx le fast back has a strange steering character on the highway. I was doing like 90ish sometimes hitting 100 and i though my car felt like it was gonna blow off the highway literally. the steering was very wish washy and i could be drivin holding the steering wheel straight and it was liek every gust of wind or something would send my car to on side or the other. basicly i want a harder steering feel, one with less play in the steering wheel. by the way i have stock suspension and my car is totally stock at the moment.
can you help me diagnose the problem?

[SimpleSexy180]

are your tires balanced? and umm...just a thought, maybe strut bars will help steering.

[XxJaPxOxNeEs23xX]

if u get ur car aligned with more toe in it will reduce that nd have a stronger or stiffer feel to the car, but it wont handle as good. also if u get lsd it gives u a real cahnge in steering stiffness