New Dodge Dart Owner

Welcome aboard. Looks like you found a nice Mopar there. You'll have fun fixing and cruising. You're right about the balance. I believe a B&M 10239 will do the trick for you. It is a flexplate for your combination. The 904 is a tough transmission. The 727 is larger and might not fit without modifying the floor. Good luck. Summit has the flex plates. And here is a description from the B&M website. toolmanmike

http://bmracing.com/?wpsc-product=chrysler-sfi-flexplate-‘71-’92-chrysler-360-wtf904