I have a 2010 Ford Flex had 158,000 miles on original struts were making some noise so had a local shop install complete Napa struts. Ran great, nice and smooth for about 2 weeks and started to get a clanking sound from front end when making turns coming from the upper bearing. Got Napa to warranty the parts and labor. Within couple hundred miles starts doing same thing again, of course they have never heard of this before. Any suggestions appropriated.