I have 2 T5 from 1990's GT's. One currently in my car is really starting to make a few noises in 1,2, and 3rd that I can hear over the exhaust and wind noise.
I also have in the garage another T5 that I picked up just for carrying it out of their garage - free. Was told it came out of a 5.0 Mustang, but when dry shifted into 3 or 4th it locks up. Dry shift is just on the bench shifting the tranny while I hand turn the shafts.
I have a 1995 5.0 GT tranny here that I can have for about $200 that I drove in the existing car before it was pulled, which shifts smooth and no noises.
As I understand it I can use a 1994/5 tranny if I switch the front shaft with one of the ones off my 1990 tranny.
Does that sound right?