2006 Dodge Ram 2500 drivetrain & axles problems

We were driving down a freeway and on our way to the beach and suddenly the truck vibrated violently and we heard a loud noise, we were able to pull almost to the shoulder when the truck came to a complete stop. We tried to restart it but it won't run, the drive shaft fell off the truck and was lying on the middle of the highway, the rear wheel was locked. We were lucky that we were driving early in the morning when there was not much traffic, if not that would have caused a very serious if not fatal accident.

Tl* the contact owns a 2006 dodge ram 2500 megacab. While driving approximately 25 MPH, the entire vehicle began to vibrate severely and a metal-on-metal clunking noise emitted from the transmission. The failure recurred continuously. The vehicle was taken to an authorized dealer on ten separate occasions for the same defect. The four tires were rotated but the failure continued. The technician informed the contact that there was not a remedy available to correct the malfunction.