[Darrin]

Yeah, it's tough trying to find accurate info on the web because so much of it isn't. For example, the 99-02 transmissions are pretty much internally identical. Things changed some in 03 and again in 04 with the 04 being the best. At least for anyone with a 99 or newer. Those with 98 or older vehicles can't use the newer transmissions because of changes to the output shaft. For you guys I would definitely go for something 04 or newer. But, with newer know that you will have to change at least the manual lever because they won't be from a Mustang.

For good advice it's not the best idea to just read. You did the right thing by asking. Even then you have to be careful though. It's always a good idea to make a few calls to people who work on these regularly. Most will take the time to help you.

D