This is my first mopar resto. I have a challenger I'm cloning to a 71 from a 74 I put a new floor in from front to back and I'm ready to put the sound deadner in and I decided I want to convert to a 4spd my question is do I need to get the 4spd tunnel hump and weld it in or can I use the automatic console and use the template cut out to make the automatic console to accept the 4 spd thanks everyone