Do I need a steering wheel adapter???

Hello Mopar brothers and sisters;
I am looking to change my current steering wheel on my 1971 Dart to a Grant #246 steering wheel (if they ever answer the phone). I called the 1-800 number, the direct line, and sent customer support a message several days ago with no reply. If I am able to connect with Grant Steering wheels, will I need an adapter and if so, which one? Does anyone have any experience with these wheels? Thanks in advance Ron D