One problem related to suspension noise 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.
While replacing lifetime warrantied suspension which was not honored by Nissan or tenneco, I found the rear pinion seal to be leaking severely, and rear axle seal leaking in wheel assembly. Possible source of "ticking" noise from differential, which until then I thought were exhaust heat shields. This condition could cause catastrophic drivetrain failure while vehicle is in motion. The fluid leaking from axle seal can reduce effectiveness of braking components. Other owners have described inadequate engineering & possible use of substandard differential materials & components along with axle vent assemblies which could create internal pressure conditions that could cause seals to fail.