All of it. The 10 percent figure you occasionally see is nonsense that a lot of people believe just because they've seen it so much.
Quick Answer. Some things that cause a vehicle's front end to make a clunking noise are worn ball joints, a damaged tie rod, broken or loose sway-bar links, hard or damaged shocks, and faulty shock mounts. An automotive professional can inspect the vehicle's front end to locate the source of the clunk. Continue Reading.
I noticed recently that there is a humming or growling noise coming from the driver's front wheel area that increases(higher pitch) with speed. It makes the noise when slowing down also. There is no noise at idle or parking lot speed. The noise started as slightly audible and has increased to being heard over the radio.