I own a Ford Focus 98 year. Recently it's been pulling to the side I've taken it to a local garage and he's advised me to change the arms (the wheel hub? suspension strut? no idea, however the car is also making noises when i floor it and get up to 40-60mph and its like a whirring noise, my petrol isn't running down quick so i know it isn't the engine.

Does this sound - mind the pun - an arm that holds the wheel error? I was under the impression that sorting out the tracking/wheel balance (are these the same things) should ought to have fix this problem