Why do my frt. disc brake pads, even replaced, sound loose all the time???

What is your question?

Second set of disc brakes since I have owned this truck. I have replaced everything from the hub out on both sides: rotor, caliper, and brake pads. I still get lots of noisy clanking from the front brakes when under way,especially if I hit a bump or hole in the road. A little pressure on the brake pedal and "wa-la" no noise...???????