Hmm. Which transmission? I'm installing a 2013 6.4L with NAG1 from a Charger SRT into a 1964 Valiant. Using a Hotwire harness for both the motor and trans. Give Chris at Hotwire a call, 479-243-9115. You will need to open up the tunnel but nothing crazy. Also need a slip yoke/U joint, which any drive shaft shop will make you. You can do it!
