Let’s see…
the key switch in the dash is mounted differently every year, and the wiring is different for them as well.
the glovebox door and seat backs did not lock in 67, changed for the new safety mandates in 68
the 67 dash frame is solid under the dash pad, whereas the 68/69 are relief cut, again for the safety mandate
dash pad is one year only for 67 with the raised relief down the middle
The heater controls and cables mount different for 67
thumbwheel radio in 69
door inner structure is different for 69
I’ll think up some more later
