One of the rear doors on my ext cab doors does not latch on the bottom. I tried adjusting the striker but found that it's actually the latch inside the door that's busted.

Every time I search for parts I find actuators and the door handles but not the latch. I suppose it could be a cable issue but my feeling is the latch itself.

Anyone have any ideas how I can find the part? Guess I could go junk yard shopping.