You have to cut off the two front transmission assembly line ears flush to the trans case (about a 1/2 Lb shaved) and then after that, it should only need a little body hammer work to the seam edge of the trans tunnel floor underneath to flatten it for clearance. This is only on a standard engine K frame positioned situation. I had to cut out and body shape/form a new half trans oculus tunnel because my engine is set back 2" inches. I have a 65' post Dodge.