yes the early T-5 should physically bolt in, but since it's the early version from a V-6 car it won't be what they call the "world class" T-5 and won't like having even a mild amount of power put through it. My memory is kinda fuzzy on it (I blame Jack Daniels for that) but I want to say that the world class T-5 didn't show up until somewhere around '89 or '90.