Drove the car to Nashville and back(1300 miles) and noticed a vibration around 85 mph. I can feel it in the floor and if I play with the throttle I can make it go away. Any ideas?
New driveshaft, possibly a new rear differential is needed also. Warranty work. Its a one day fix, assuming the shop has the parts in stock. It can be fixed real easy so don't sweat it.
