I have a 2wd 2012 5.0 Platinum. I have a mild vibration in 1,2,3 and 4th gear. Might be in 5th and 6th but can't detect it. It's in 1st and 2nd at mild (normal) take off. 3rd and 4th light vibration getting up to speed from normal take off, say from a stop light etc. It feels like it's behind me rather than under me as in rear end not transmission. Maybe an unbalanced drive shaft. I have searched TSB's and don't see any for a 2012. I know the 11's had some vibration issues. This truck was built very early January 2012 or maybe even late 2011. Not sure how to tell. Window sticker shows it was on a carrier on 2/23/2012. I have 1200 Miles on it. Had 85 miles when I purchased and has done it from day one. Haven't taken it to the dealer because I thought maybe it's because it's still new and breaking in. Now I don't think so.
Any help is appreciated.

 

Any TSB's out there?

 

VIN please

 

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