I've been looking for a rear axle for an 04 Titan as well. However, our 04 Titan had a recall and was replaced with a 2005 Titan rear axle. Unless you know a friend in the auto industry a rear axle is going to cost you over $1000. Check out
http://www.automotix.net/ They actually have some good deals for the rear axle. We called Nissan dealership and a brand new one would cost at least $1200 or more.
Channary
The 2004 Nissan Titan has 60.3 in. of rear hip room.
The 2004 Nissan Titan has 38.9 in. of rear head room.
The 2004 Nissan Titan has 64.9 in. of rear shoulder room.
The 2004 Nissan Titan has 33 in. of rear leg room.
The rear track of the 2004 Nissan Titan is 5 ft. 7.5 in. (67.5 in.).
The 2004 Nissan Titan has rear wheel drive.
The 2009 Nissan Titan has 60.3 in. of rear hip room.
The 2011 Nissan Titan has 64.9 in. of rear shoulder room.
The 2010 Nissan Titan has 64.9 in. of rear shoulder room.
The 2013 Nissan Titan has 60.3 in. of rear hip room.
The 2006 Nissan Titan has 38.9 in. of rear head room.
The 2008 Nissan Titan has 33.0 in. of rear leg room.