Car is shuddering at certain highway speeds, turning the wheel slightly makes the shuddering go away. Took it to a local garage they told me I needed new control arms and bushings, and a ball joint, on both front wheels. Guy told me lots of Subarus have this issue, it's the weak point of the car. I am starting to become suspicious. That it might just need bushings. Does anyone else run into this at less than half the recommended mileage for part life?