I have a 2009 SRT8 with 14000 miles. I have a strong vibration occurring in 6th gear at 80+mph. If I put it in 5th gear the vibration is eliminated so I don't think its a problem with balance or alignment. Anyone have some thoughts on what it is?
I really don't think its alignment because it would do it in 5th gear too but it doesn't. I saw some older threads and someone mentioned it could be the synchros. I'm not sure how that works but you never know.
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