I've been watching your posts with interest. I pulled up the carpet I installed 18 years ago on my 67 (on a solid floor), and found the floor mats are what was keeping my feet off the pavement. I'll be doing floor pans, toe boards and T-boxes as soon as I get space in the garage. Question: the coupes came only withthe d-side T-box. Is there any reason not to put both back in when I do this work?