T-5 to C-4 question...few questions

[82 GT]

Let me try to clear this up a bit.

I might be swapping my C-4 tranny for his T-5 tranny.
First, I need to know if a T-5 driveshaft is the same length as a C-4 driveshaft.(if not, then I'll simply swap shafts also).

Will my C-4 tranny work with his T-5 crossmember without modification?

To sum it up: I'm putting the T-5 into my '82GT and he his putting the C-4 into his 91GT

Does that help?