Adding ac to my ‘67 Dart

I have a 69 B body that is a factory AC car. Every part in the AC system including the entire heater box and core needed to be rebuilt or replaced
I went with a complete classic air setup which included new controls heater box and core and every part I needed
It was fairly easy to install and worked great. I did have a problem with the heater control valve after about a year and needed to replace that
The tech advice wasn't bad and I found the instructions good