I'm actually curious because my 2013 mustang has done it a couple of times. If its under warranty, can the dealer actually change the gears to something other than the stock 2.73s if I request it. And would it fall under warranty? Also, if they do would they be able to tune the computer so the gears run smoothly??
It’s up to them to add aftermarket parts to your vehicle, RaceRedSixxer. This will be customer pay, not a warrantable replacement.
I recommend you have it looked at by your Ford Dealer to make sure all is good. PM me with your VIN, dealer, mileage, full name, and best daytime number so I can escalate this to the customer service for your area.