How do you replace the door latch on a Ford Econoline van?

To replace the door latch on a Ford Econoline van, first remove the interior door panel by unscrewing any visible screws and gently prying it off. Disconnect the wiring harness if applicable, then locate and unscrew the old door latch mechanism. Replace it with the new latch by aligning it properly, securing it with screws, and reattaching the interior door panel. Finally, test the latch to ensure it operates smoothly before reassembling everything.