love my new rust bucket!!!

welcome
i have a 65 convertible that had a lot of rust
the floors hood fenders and trunk lid and trunk floor are the same as any 2 door car.

I'm in the process of welding a used floor into my 65 Dart Convertible. It's a 4 door floor and it fits perfect in the convertible. Same for the trunk floor. Rocker assemblies are different on a 4-door but the floor pan is the same.

http://www.forabodiesonly.com/mopar/showthread.php?t=196103

I know in 65, Valiants have a shorter wheel base than Darts. Not sure about 66.