2001 Mustang GT Transmission Identification

[jam199wins]

I have recently purchased a 2001 Mustang GT that I believe has had a Saleen S281 SC motor swap. Is there a way that I can find out if the transmission and motor is actually from a Saleen, or if the guy just threw in a salvage motor with a Saleen supercharger. Any help would be appreciated. Thanks.

 

[Doubledj]

automatic or manual? auto came with a 4 or 5 speed auto tranny. manual came with a 6 speed. believe a T56.

 

[jam199wins]

It is a 5 spd manual, so must be the stock one then. Thanks