05-24-2005, 02:04 PM
there is only one way that you could mess up your transmission is by using mismatched tires on the car. if your driver's side tire is a 195-60/15 and the other is a 205-55/15, and you drive it for a long period of time then you will mess something up. thats why on you temporary spare, it says not for long term use.
'03 Focus SVT