This is the rubber that goes into the bracket of the bottom of the center of the door, for 1970 bolt-in door glass.
Note that this bumper is substantially taller than the 69 version. See C9ZZ-6521762-A for the 1969 glued-in door glass version.
If you are swapping out a door on a 69 or a 70 don't forget that the door glass is different between the years and, if you have to swap out the glass, you will need to make sure you have the correct version of this part for the type of glass on your car (bolt-on or glue-on) or your door glass height, when all the way down, will be off.
These are very difficult to remove without damage, and we often times will be out of stock. A close substitute is the reproduction bumper for the 1967-68. The 67-68 bumper is slightly taller, but better than nothing.
Ford part # D0ZZ-6521762-A.
Do you have questions about Glue-In vs Bolt-In glass? How about how to properly install Glue-In glass in your 1969 Cougar or Mustang? Check out our video below for some great glassy information!