I have a friend with an 07 2500 quad cab 4 wheel drive. Last week on the way to the Mopar nats he was having bad shake at every bump in the road. (He was scared to death by the time we got there). We found a dealer north of columbus that had recall parts for his truck so we dropped it off, and they fixed him right up. They replaced the drag link part # 52122362AB and damper # 52122370AA. This was done under warranty. He said the truck drives great now. He was towing his 69 GTX during this ordeal. Hope these part #'s help. Randy( it might have been the track bar they replaced, but he told me drag link)