Think the block on the GT is taller and wider. I use the six top bolt holes on the tranny and had to change the position of the guide pins. the rest line up as stock. Don't have pic of the clutch and starter hocked up.
I was also looking at Xtrac but it's very expensive and to noisy for my streetcar.
As you can see on the pic I cut and removed the old steel, so tomorrow I will do some welding and start the drop of the engine an tranny
