Still here a vibration or knocking noise..

After taking me Blazer to get it looked at the problem they thought they had fixed wasn't even the problem to begin with. Whenever I drive on a road with bumps or gravel I hear a knocking or vibrating sound in the right front area of the truck. Sometimes while I sit ideling I can turn the wheel and also hear the knocking.. Can anyone shed some light?

One thread is enough.