One problem related to transmission gear slipping has been reported for the 2007 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Nissan Titan based on all problems reported for the 2007 Titan.
While driving on flat road under normal road conditions I heard a loud thump from the rear of the truck followed by a several more intermittent thumps. The truck still drove, but with the thumping. Upon inspection I discovered that the cross shaft for the spider gear slipped out and got in between the pinion and and ring gear causing it to bind. It broke several teeth off of the ring gear, damaged the cross shaft and marred the pinion gear.