this is driving me crazy. once in a while at highway speeds the car shakes thru the steering wheel and feel likes the front left wheel is about to fall off. i then shut the car off and doesn't do it for a couple hundred miles. i changed transaxle and still does it but not as frequent. the whole front end has been checked multiple times and is in good condition. car is 310000 miles and i drive about 200 miles a day..transexle was 900 out of door.