Two problems related to manual transmission have been reported for the 2006 Nissan Frontier. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Nissan Frontier based on all problems reported for the 2006 Frontier.
2006 Nissan Frontier manual shift 5 speed 4 cylinder - clutch assembly went bad at 34,000 miles. Now at 60,000 miles clutch is bad again. Different driver. I have driven a clutch all my adult life (55). Never had this problem before with any other vehicle. Numerous instances in internet forums of similar reports.
Brakes failure due to rear axle leak . Myself and 10000's others have been having a problem with the rear seals failure due to a faulty air vent that clogs and hot air will build up and the seals will fail and the oil get all over the rear brakes causes the brakes to fail.