If you look a little further up the page, that is my set-up. Mustang Highbacks on LDO tracks, and this gains a little headroom if you are tall. The regular Mav highback tracks are taller (1.5 inch I think). If you use the LDO tracks, the outboard holes in the floor should be moved 1/2" further out to center the seats behind the steering wheel. The highback tracks have this outboard job built into them.
