I have had all these parts for years. Installed and uninstalled and back again and again and again. By all my measurements, the tail housing is 2 inches low when I jack it all the way against the floorpan. Every one I have read about says they fit with a little massaging but I don't see it. I am looking for some more accurate input. I know I can cut the tunnel and redo it but would rather not. Please let me in on any information you have. I really want to get this going this summer. Chris