Differential Unit problems of the 2007 Toyota Tacoma

On a routine commute home, I was traveling approximately 70 mph in the #3 lane on the freeway when I noticed I lost acceleration, but the engine would rev. It regained acceleration then went away again with a harsh sound. I was able to safely move over to the shoulder and inspected the vehicle. It would not move in any gear and upon inspection of the underside, smoke/steam was coming from the differential and it was very hot to the touch. The towing company spent an hour trying to pull it onto the flatbed due to both rear wheels being locked despite all brakes being off and the transmission being in neutral. Once it was dropped off at my residence, I removed the third member assembly. I discovered there was no fluid and the pinion gear looked ground down and there were metal flakes. It also appeared to be leaking from the pinion seal, something I was not aware of leading up to the incident.

The contact owns a 2007 Toyota Tacoma. The contact stated that after having the transmission module replaced, the vehicle exhibited a loud humming sound. The vehicle was taken to an independent mechanic, who stated that the rear differential needed to be rebuilt. The manufacturer was made aware of the failure. The vehicle was not repaired. The VIN was not available. The failure and current mileage was 106,000.

My problem deals with a 2007, Tacoma, x-cab, prerunner, v6, thats equipped with limited slip differential. The problem is that every time that I parked the vehicle and get back into it, start the vehicle, and releases the parking brakestheres a grabbing feeling/noise in the rear end of the truck. The noise you can hear and feel it, as the vehicle moves out of the parking lot. However, the dealerships service department told me that this is a normal thing that all Toyotas that are equipped with limited slip differential do. In other words, they told me that this is normal and grabbing noise of this vehicle. Its hard for me to believe this; I feel there is a problem with this vehicle in the rear end. When I brought the vehicle in July 2007 (new), there was no grabbing noise/feeling. Why now, almost a year later. Can someone tell me is this normal of having a vehicle equipped with limited slip differential? the noise seems to be getting louder and I am worried that the vehicle goes out of warranty and then the dealership will tell me theres a problem with the rear end. Costing me dollars to repaired. Can someone help me with this issue? this problem has been going on now for least five months or more.