TL* THE CONTACT OWNED A 2005 DODGE RAM 1500. WHILE DRIVING AT VARIOUS SPEEDS, THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE VEHICLE. IMMEDIATELY AFTER HEARING THE ABNORMAL NOISE, THE VEHICLE BEGAN TO VIBRATE VIOLENTLY AND CAUSED THE CONTACT TO CRASH INTO A RETAINER WALL. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. AFTER THE INCIDENT, THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS CONFIRMED THAT THE REAR AXLE PINION NUT WAS LOOSE. THE VEHICLE WAS DESTROYED. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 14V796000 (POWER TRAIN) AFTER THE FAILURE OCCURRED. THE CONTACT STATED THAT NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V313000 (AIR BAGS) WAS NEVER RECEIVED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 107,000.