Only mods to trans tunnel are the access holes I put in so I could reach the top bell housing bolts easier which I have plates to cover. You do have to grind off a few bosses on the bellhousing to clear the shield. I don't have to have the shield as the car is slowed to run mid 11s but have it for safety, it does add about an hour to a trans removal.
68 Dart 410 / 904 92 D150 original owner 21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4 23 Audi Q5 16 Honda HRV