I have a 1973 Dart sport convertriple 318/3 speed manual #s matching. I will put pics up of restoration soon. I have a hot little 340 about to be thumping with a 4 speed where the 318 is. 8 3/4 (742) posi sure grip or (489) 3.91 sure grip when I need a good rush. Haha. Ill keep y'all posted.