I made this part for my shifter knob on my 2004 Lincoln Navigator after it cracked. I believe it will fit on 2003, 2004, 2005, and 2006 Navigators. It might also
...Show more fit on a Ford Expedition, but you will know better if you have the Expedition. I am not sure if they share the same shift knob.
The dealer does not sell this piece and the want to sell the complete shift knob for over $400.
INSTALLATION:
When installing I first test fitted and I had to sand the lower portion a bit to fit perfectly. It was minimal sanding with 100 grit sandpaper. I then dabbed a couple drops of gorilla super glue gel where the knob plastic and bezel contact. Be careful not to glue the button!