Joined: Feb 2011
Location: Western MA
I would at least replace the shifter bushing with an aftermarket bushing, and they are relatively inexpensive. If this improves the shifting issue, you know it will get even better with a new shifter setup. It helped when I did it to my 2012 GT. Also, having the 3.73 rear end and getting into high rpm shifting, these transmissions just don't like that! Mine didn't. The torque on the drivetrain does not keep it aligned to shift cleanly, at least it didn't with my GT until the bushing and shifter were replaced. Same transmission and rear gear on mine, but not the same differential though.
With a little over 11,000 mile a year on the car, the previous owner must have enjoyed the car. At least it didn't sit. I'm not big on modding cars just to modify them, but the shifter bushing is a no brainer, and will not give you any warranty problems. I did that to my current car and it just made it better. And I wasn't really having any problems with it.
So don't panic. You haven't had the car long enough for that. One step at a time.
2014 Shelby GT500:Delivered 4/3/13, Black/Black stripes/Black interior, SVT Track Package, SVT Performance Package, JLT Oil Seperator, FRPP Resonator Delete, Syntha Max blue air filter, Revan Racing shifter bushing, Michelin PSS tires, Lloyd GT500 mats, and yes the stock Shelby seats.