That's the piece. So, what, just yank the lock rod out of the plastic bushing on the latch end? Will it absolutely destroy the bushing, or can it possibly be reused?
How did you get those latches in the pic out with the lock rods still attached? It looks like you somehow managed to disengage the lock rod at the lock cylinder end, like I was originally trying to do, as opposed to disengage it from the plastic bushing on the latch end, as Crycho suggested.
Hmmm.
Also, are there supposed to be two or three of the short (2") cat whisker fuzzy window guides inside the top of the door? There appears to be an unused mounting hole on my door... didn't know if I was missing that third window guide.
learning....