I bought a kit meant for a small block in the A-body with a different bellhousing and different version of the T-56 Magnum, and then I modified it. Saved me some work. The upper piece and the new lower piece are considerably more stout than the factory parts. The shop working on my car belongs to a friend, I went in that day and helped "engineer" the solution to get it done and save on shop labor needed for the mods.