1972 Duster Build with my Daughter
So you see this ring goes between the metal door and the plastic trim. It won't pull through the plastic hole...
The cylinder comes in from the outside and once the tab is released it can't be pulled back out through the plastic hole because of the ring.
Install the latch into the metal door...
Now place that ring over the latch..
Install the plastic cover (stick your finger through to hold the ring.
In goes the cylinder in the locked position (it must be in the locked position to remove so if you don't have the key you are screwed)
Unlock position and pull out the key to release the tab and your done.
Install the 5 screws to hold the plastic to the metal door and adjust the door latch.
All done and work perfect.
Now to the dyed defroster vents. Some of the mounting tab snapped off when removing the nuts on disassembly but I saved the ends. These are hollow so you can run a piece of brass tubing down the center to give a glue joint super strength.