Here is my problem:

I am getting an unusual clanking sound from underneath the front end of my 4Runner when I initially engage my brakes. It sounds like 2 pieces of metal clanking together. It is really noticeable when I am braking at a speed of 35 mph or slower. When I am at higher speeds it either doesn't do it or I can't hear it.

I haven't taken any damage to my undercarriage. There was nothing out of the ordinary in my visual inspection. I have had friends listen while I replicated the noise but nobody has any idea what it could be.

Let me know if there is any more information I can add that may be of help in figuring this out.