One problem related to axle shaft has been reported for the 2004 Nissan Crew. The most recently reported issues are listed below.
2004 le 4x4 offroad-big tow package with 62,900. Miles. I was leaving my apt. Made a right turn, started to increase speed to 25-35 mph when a clunk noise came from my rear end. I stop to check it out and did not notice anything out of place. Started back up and it continued. So I went straight to the dealership. After they looked at it, they show me metal peaces and how the gear was skipping. There recommendation was replacement of the whole rear end. I'm an easy driver, have not pulled any loads with my truck. 60 months 60,000 miles is the warranty. I'm just outside that by close to 3,000. I would hope this helps, Nissan needs to look into this matter as I have net work and found that this has been a problem with 04-06 tatin.