Well lo and behold! I just had my rear sagging springs replaced under warranty with NO QUESTIONS ASKED! Well I take that back, he did ask me where I got all of that "kick ass stuff" for my truck! Directly following with "man your truck rocks", "man your truck is tight"! He then told me he appreciated my business and to come back anytime.. DAMN! Beaverton Nissan Service Dept. Kicks ASS!
It looks like the X is about 2" higher in the rear now... I will check for sure when I get home.