differences in 68 and 69 Cuda doors

Hmm, the only difference I was aware of between 68 and 69 was the relocation of the door lock plunger from the back edge to about a third of the way forward. But obviously, this would require changes in the internal lock components (not the lock itself or the latch, but the connecting parts). So it is possible that there was some sort of bracket or brace belonging to the 69 mechanism that wouldn't fit in the 68 door so it was left out. Does the 69 FSM show any of this clearly?