67 twin turbo dart

Matt - it’s all in the throw length of the cable. It took me hours to get mine right on the Promatic. If it’s only going into Park and 3rd then it sounds too long. Shorten it a tiny tiny bit (just a thread or two) and test again.
For this one its the routing and they said I should be able to go straight to the trans lever but don't think it can on the 727 it needs their bell crank and routing the cable how they say, so I'll drill another hole and route it through the floor board as they say, lots of people havent had any problems doing it the designed way. Will see how the passenger seat fits after this lol