My wife has my 2003 2500 4x4 in Texas while she is visiting our kids while I am waiting for delivery of our 2006 Mega Cab 2500 4x4 here in the Midwest. She keeps hearing a clunking noise around the left front wheel when going between 30 and 40 miles per hr. She took it to a local garage and they pulled off the Left front wheel, checked the brakes and found no problems. The truck has 55,000 on it. Not much to go on but I thought maybe someone else may have had the same experience. Thanks for you replies.