Originally Posted by Patrick Duncan
is the t45 a better tranny then the t5 and will it mount with no modifications? im just looking to get a smooth shift and thanks again
The T45 is a much better transmission but it won't fit in your car, different year etc...
The 3650 that's in the 05/10 GT will work with an aftermarket adapter plate.
The problem is to find a used unit cheap enough.
The 6 speed T56 or T6060 (Shelby unit) will bolt in your car as well with the same adapter plate but those 6 spd are pricy.
Look over at the mustangcollective.com for those swaps, it's been done...