One problem related to axle hubs has been reported for the 2004 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Nissan Titan based on all problems reported for the 2004 Titan.
The rear axle hub seals leaked after the 1st and only pulling ever done with my 2004 (4 x 2) se Titan p/p. My vehicle is equipped with " big tow pkg. " dealer replaced the entire rear axle. " no" pulling or towing done since replacement by dealer svc. Done 12/24/2008 at 85,417 miles. However, a right/passenger seal leak noticed on 08/29/2012 at 152,247 miles. I was told by the regional warranty service manager that the issue had been resolved with an " upgraded better axle system " which would resolve the problem when the rear end was replaced. The rear axle diff. Fluid leak is causing periodic braking issues and noises. I am very concerned about safe braking, especially when driving the vehicle in wet weather. Needs to be addressed as a safety issue.