t-45, t-3650, t-56 slip yoke differences

[er22bball0302]

Im needing to know the differences in the slip yokes these trans. use.
I though the t-45 had a 31 spline but i cant seem to fin anything regarding the t-3650 or the t-56.

 

[quick01snake]

t45 (99-01 at least) and tr3650 have the same spline output shaft, yoke for one will work for the other...i'm not sure off the top of my head about the t56, but i think it's larger...

 

[RoyWoods]

The T-56 in the Terminators has a 27-spline. However, the '00R spec T-56 has a 31-spline, just like the TR-3650.

 

[er22bball0302]

ok so for my t-56 swap i have to get a slip yoke from the t-56.
I was searching around and found a thread talking about taking 1/2" of the t-56 slip yoke so that the driveshaft didnt have to be shortened. What are your opinions on this?
Anyone know the driveshaft lengths between the 2 setups, im swaping from a t-45.