Seems when I'm on the highway driving high speed my front end seems to do a rappid bounce, like a fast up and down hop but not real severe, just annoying. Have new tires, new shocks and replaced all worn parts in the steering linkage. adjuste steering box lash per DYI. Alighnment doesn't feel bad. Crazy thing is, I only notice it while driving on concrete roads , not asphalt. Anyone have any suggestions?

 

Mine does the same thing. New shocks So,Dont know what it is..