I suddenly have a clunk in front end of drive train when I turn steering wheel 1/4 turn right or 1/4 turn left . steering works fine, but when clunk hits vibration from it can be felt in floor and steering wheel. I can also see left front wheel jerk. But... if I raise front wheels off ground with FEL there is no clunk and if I grab tire and try to move front wheels there is no play at all in front end. Any info would be greatly appreciated