i have done some research on this but i dont know wut i might need so i want to get some of my fellow ef owners opinions.... i have a 90 si wit a gsr swap thats is having these problems at speeds from 45-60 were the steering wheel vibrates left to right but if i let go of the steering wheel the alignment is straight and the wheels are torqued down.... also when i go on to uneven pavement the driver side makes this noise as if the shock is no good but i have some fairly new tien basics on the car i checked the shocks and there good.... i some people tell me it could be the wrong axle/ intermediate shaft combo or the rack and tie rods could be bad.... any opinons will be greatly aprriated and if someone could give a picture the different intermediate shafts so i could know the axle combo i need

 

bump.....

 

You might want to check your tire pressure and ur alignment even check the coilovers make sure everything is right and tight and check the rubber boots that are behind ur tires