I have a 97 with AWD and 4.0 SOHC. When I go down hills and apply the brakes you hear a loud clunk, clunk. It sounds like something hitting. You can also produce the sound if you brake hard on the flat. So its from the front and louder if you load up the front. Someone said its the AWD and just disconnect the front DS and go on, but I like things that work like they suppose to. Any ideas? On the lift, you see nothing. It is not wheel bearings.