weird hopping
 

have a 97 mountaineer with AWD. for the last 2 days, when i turn a corner, the front end feels like it is trying to fight me throught the turn. Feels like instead of AWD, its 4x4 and im trying to turn to hard and there is front end hopping. had the ball joints and tie rods replaced a month ago, wondering if anyone may have any ideas or suggestions.
thanks