Alright.... after reading most of the stuff here, I finally decided to take my G in for the clicking in the rear axle and for the squeking in the front driver seat (cover by the warranty)... Passport Infiniti (Alexandria, VA) told me that is been a problem with most of the coupes for a couple of years now... I got a loaner (G35X) and I was told that it will be done by the end of today (maybe by Lunch time). Now... I took that G in this morning at about 9AM, I really hope that they do something about this problem, because sometimes I feel like they don't even look at the car and then they call you to pick it up.

 

Took mine in the other day for the same clicking noise. There is a TSB out for it. They had to tighten the rear axle. clicking noise is gone.