Bench to Bucket Conversion Advice

I just did this on a 67 barracuda yesterday. The dimples are in the floor pan. You will need to add braces on the inside holes only, so 2 per seat. The outside holes are supported by the same brace the bench seat bolted through.
AMD's reinforcement plates do not line up correctly on the early cars. They should have provided these without the hole in them. I ended up making my own. For the old bench seat mounting hole I put body plugs in them. I think a 3/4" plug fits but sometimes you have to clean up the hole with a step bit a little to make them fit.