2004 alero frame is not bent and the following have been done, road force balance twice, rims check for being bent and not, new tires complete new brakes including new brake lines and fluid flush alignment, new rear struts, car shakes not the wheel entire car wheel is fine, car also has ver very rough rinde and vibrates ver hard the car does not make any noises whatsoever it just feels auwful scary to drive especially at high speeds idk what to do nothingn is fixing it what can it be?