I have an 04 Titan and this is the 3rd right axle seal leak that I've had. Truck has 45k miles. The first time the dealer replaced the seal. Second time the entire axle assembly was replaced. Since then I've mounted 35" tires which was recently and now have my 3rd leak. The shop foreman at the dealer denied warranty claiming that because I have 35" tires and modified suspension the warranty is void. I went down to talk to him in person along with the service manager. My arguement is that this is a known Titan rear axle defect. The axle seal is NOT a load carrying seal - tire size does not make a difference in the failure of the seal. If I were trying to warranty axle shafts, then maybe. So at the end of our conversation they said they would contact Nissan so they don't look like the bad guys here. Since that conversation I have called Nissan's consumer affairs and filed a complaint and also reported the defect on the NTSB website. Any advice from anybody on how to further approach this situation?