Seen literally THOUSANDS of Darts in the last 35 years and have never heard of a factory installed 6 way seat. I have pretty much all the factory documentation for 67-76 Darts and have never seen any mention that it was available. As always I will never say never with anything Chrysler ever did, but to believe it would require something from Chrysler or the dealership is was bought from.
The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.
