Originally Posted by
jchauncey
Yes the 1990 Gt's used a T5. They started using the T45 in 94 or 96. I cant remember if its when they changed the body style or when they went to the modular engines but its definately one of the two.
The T45's started in 96 when they went to the mod motors.
T5's where used all they way up till 95 but in the 94/95 model years they have a differant length input shaft.
Also for further knowledge the 3.8L V6 used the T5 all they way up to 04.