89 240sx shakes after 40mph?

[abel2011]

Hi, I'm new here and i've owned my 240 for a couple months now. Love the car but for some reason between 40mph and 65mph the car shakes bad...and will not stop until i hit at least 70..
Could anyone fill me in as to why???

[moso]

Just about anything suspension related could be causing that vibration. Currently I have a similar vibration, I believe my wheel bearings are causing it. However, Ball Joints, lower control rod bushings, bad struts, bad wheel balance, and a laundry list of other parts can cause that vibration. You should start by jacking the front of the vehicle up and bracing it with stands, then try to wiggle each wheel top to bottom and left to right. if the wheel has play then you probably found your problem. continue to wiggle the wheel while looking for the source of the motion.