ok,
What are you looking to changing, a Clutch?
Or your transmission, a t-5 is a Transmission.
If you want to replace a clutch, look for Ram, Luk, Centerforce, ect.
If u want to replace ur tranny, you can do a few things,
Rebuild. look for another tranny, or keep it a t-5.
World Class t-5, the new Gforce T-5.
Shifters Fit what tranny they are meant for.
Look at steeda's site, under the shifter it will tell you if it was meant for a t-5 or another tranny.
If u stay with a t-5 than any shifter made for at t-5 will work.