Rear axle seals have now failed for the 3rd time. Nissan dealers tells me Nissan will not permit them to replace seals alone. Nissan corporate headquarters fix is to replace entire axle assembly at a cost of approximately $800 each axle. Nissan is obviously aware of a design problem, but will not take the lead to fix, but put the cost of a defective design on the back of their customers. Nissan service representative told me there is a flaw in the materials used in the differential and differential is not venting properly thus causing the seals to prematurely fail. I fail to understand why a recall has not been issued since this is a common problem on Nissan Titan trucks that Nissan will not face. Sounds like Nissan is having a Toyota moment and burying their head in the sand.

- Springfield, TN, USA

The vehicles front differential failed at 34,250 miles. I have researched this on many online forums and have found that this is a very common issue that does not necessarily resolve with just being fixed. I was very upset to find out that while my wife was driving my 2 children while helping her mother move, that the axle on the vehicle may have been separating. My truck is not utilized for hauling large loads or towing of any kind.

- Seven Valleys, PA, USA

Passenger rear axle seal failed at 37,000 miles. Nissan is repalceing under warranty, with the same part that will probably not last long either...

- Ashdown, AR, USA

Had been hearing a 'clank' when putting vehicle into gear, similar to when a U-joint is failing. While towing my boat trailer (boat was in the water), had the vehicle in 4WD, and turned hard left to exit the parking spot. Heard a loud snap in the rear end, then heard another one. Used truck to pull the boat out, but then disconnected the trailer and had my friend tow the boat home. Took truck to dealership next morning, and they replaced the entire rear axle assembly under warranty (thank god!).

- Lorton, VA, USA

I was changing rear differential oil found leaking form the driver side axle seal and pinion gear shaft front seal. If axle seal leak gets worse it might get on to the ABS sensor and brake disk and emergency brake (little drum disk) and cause serious safety problem. Also if I did not know about this and kept driving this axle only hold about 2 quarts of gear oil, all oil can leak out and cause differential failure problem suddenly and it is a serious safety issue also. Leaking oil is also a environmental hazarded. So many people seems to have this problem, by researching on the internet.

- North Las Vegas, CA, USA

2006 Nissan Titan king cab 4WD..rear diff went out at 17,166. Nissan replacing at dealership.old part is to be sent back to orlando fl warehouse.

- Port Charlotte, FL, USA

(1) rear end starting making a high pitched whining noise at high speeds, a groaning at low speeds (3) dealer replaced entire rear end assembly.

- Mahopac, NY, USA

Ever since I bought my Titan (3-3-06) I noticed a whining noise at speed when I let off of the gas. I always thought it was tire noise. Well on November 15, 2006 I noticed a real bad grinding/whining noise when I decelerated. There was only 6900 miles on the truck. I took the truck to the dealership and a mechanic rode with me up the street and back and said that my truck had problems. I left the truck at the dealership overnight and they replaced the entire rear end. The mechanic said that my truck had problems before I even bought it and that the whining noise I always heard was the rear end and not the tires.

- Charlotte, NC, USA

I was driving the vehicle down a city street approximately 40 mph, when a loud, banging, clanking noise erupted from the rear end. The truck began to shake and the rear tires momentarily seized up putting the vehicle into a skid, which I was able to correct. The rear end then began to free wheel and I pulled to the side of the road. Only by temporarily putting the vehicle into 4WD was I able to get safely off the roadway. I had vehicle towed to Nissan dealership for diagnosis and repair. Truck is under warranty with Nissan. Dealer diagnosed a complete failure of the rear differential and replaced entire rear axle under warranty.

- Fontana, CA, USA

Rear end started humming at 1300 miles. I was in my yard just starting off pulling my horse trailer (about 2 miles per hour) and I heard this humming high pitched whine. I am going to call the dealership tight away.

- Jacksonville, NC, USA

Drive train-rear end making a whining sound. Complete rear end assembly was replaced in my 2006 Titan with 2000 miles on it. New rear end started to make same noise at 500 miles. Have not returned to dealer yet but plan to do so at later date.

- Concord, GA, USA

Incident occurred during normal use of a 2004 Nissan Titan. No suspension or drive line modifications. The differential failed when turning right onto a busy street. There was a loud bang then a grinding sound. The truck would not drive after that. Every time I tried to accelerate the truck would just grind and not move. The truck was taken to royal moore auto center in hillsboro, or. Where it was purchased. The service technician looked at the truck the next day and said the differential needed to be replaced. When he made the order he said Nissan would not give him a delivery date for the part because it was back ordered. It's been a week and I still do not have an estimated date for part delivery or repair.

- Hillsboro, OR, USA

Rear end vibration started immediately after purchase. Rear end had to be replaced at 3,500 miles.

- Orlando, FL, USA

Well for replacement number two. Started humming took it in and differential was full of metal shavings.

- Lakeland, FL, USA

Ok picked up truck from dealer and it started humming 3 days later. No one at dealer would believe it went bad that fast. Had to drive it 2000 mi and bring it in when the hum was very bad for them to believe it.

- Lakeland, FL, USA

The vdc [vehicle dynamic control] kept shutting off. This is a safety feature to regulate motion and speed of the 4 wheels. The vdc would not turn back on with the vdc dash button. The dealer stated the rear differential bearings had failed and the Titan was unsafe to drive. It's been at the dealer waiting for a new rear differential for 2 weeks. The truck was not delivered with the power folding - auto dim exterior mirrors; the xm radios did not work; bed extender not installed; gas tank wasn't full as promised.

- So. Lake Tahoe, CA, USA

Rearend started humming at 2500 miles. Took it in and had checked fluid looked like gray metallic paint and was low.technician said that was normal.took back week later and demanded fluid be at least changed when fluid was drained service manager decided to replace due to excessive metal in fluid.

- Lakeland, FL, USA