I had my ball joints replaced about a month ago, just locked my hubs for the first time since then last night. I can hear a clicking coming from the drivers front, and can sometimes feel it under my left foot. This only started happening when I locked the hubs, and it gets louder and more noticeable when I turn. I took it back to the shop were the ball joints were done, and they said they could hear it, but could not see anything visibly wrong. There advice was drive it till it breaks, which is not the thing that I want to hear. Truck is a 99 F350, powerstroke diesel.