Alignment is out, worn ball joints, worn tie rods, worn/broken springs, lack
of rotaion, bent control arms, bent frame, etc, etc, etc.
A good start would be a trip to the alignment shop, have the front end lined
up and have the front suspension checked out. If it's been awhile since you
rotated your tires, have that done too. Unless of course there is a problem,
then have that fixed first.
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