I was figuring it's gotta be something like that. I went to Napa and their computers couldn't find any speedometer cables that have the plastic clip, only the screw on type even when checking darts and valiants of the same year.
Out of desperation I stopped by O'Reilly's on the way home and was having the same problem until I asked them to check for it under the Dodge dart and then they found it.
That's my task for today. My plan is to spray it with lube before I install. Any reason I shouldn't?
The sheathe makes a long slow 90 degree turn under the drivers seat. The cable would wear the sheathe right there and cause problems. The entire thing isn't nearly as expensive for your model compared to others like early A. Price check the 64, 65.