Also forgot to mention that the brace that runs across the tunnel has an extra bump for the floor bumps in the floor pan. Trouble is, on my 69 the original brace did not have this bump because the floor tapered to flat and didn't need the bump in the brace. Just an example of the manufacturer not matching the original. I had to cut the bump in the brace and dolly down and reweld/grind. Another PITA.
