I just bought a 2002 gt about a week ago. It didnt come with any manual saying the options or what not were included on the car. Im new at the mustang world and im just wondering what were the available gears from the factor and how can i determine which gears are actually in my car. The reason im wondering this is because i keep taking my friends 03 mach 1 off the line. My car is stock for the most part and my friend seems to think i have 3.73's. Is there anyway to figure this out.

Thanks for all the help

 

What RPM's are you running at like 75MPH. If your between 2500-2600 probably 3.73, if your at 2800-2900 your have 4.10's

 

At 75 im running around 2600 so yea i guess that answers my question. Thanks