If I'm correct 67-69 door locks interchange fine. The only differance I found were the handles mach changed in 1970. I replaced all including trunk but left the ignition alone.
Perhaps someone can back me up on this!
I can get a key cut a dealership if i can get the key code. I have biuld sheet and paperwork is this number sequence available anywhere on the car where i can find it and cut a new key for my trunk?
You can alter the pins in the lock for any key you have.
I had a mismatched lock on my passenger side so the key for the drivers side and ignition wouldn't work in it.
Took the pins out and rearranged them to match the key I have and it works just like the others now.
just random but i just ran into the door latches on a dart are different in 67 then 69. The locking mechanisms are different. I assume 68 is the same as 69