Depending on the year of manufacture, the mounting points may differ.
Front bumper
-open the hood.
-under the hood, we pull out ten pistons and remove the lining above the radiator grille.
-under the cover plate, we Unscrew six screws and pull out two pistons.
-release the hood lock lever.
-from the bottom side, we pull out the pistons.
-turn the wheels out of the way.
-Unscrew the screws in the wheel arches that attach the undercarriage.
-Unscrew two screws on each side (twisted from the bottom up), which attach the corners of the bumper to the fenders.
-release the retainers in the fenders (pull the corners of the bumper down and on themselves).
-with an assistant, we pull the bumper forward (look for the wires).
-disconnect the electrical connector.
Rear bumper
-open the trunk lid.
-in the opening of the trunk, we pull out two pistons and Unscrew three screws.
-Unscrew the screws in the wheel arches that attach the undercarriage and bumper corners.
-from the bottom side, we pull out the pistons.
-Unscrew two nuts on each side, which attach the sides of the bumper to the fenders.
-disconnect the electrical equipment connectors (if any).
-with an assistant, we pull the bumper back.
How to remove the front and rear bumper Lincoln Navigator (1998-2002)
How to remove the front and rear bumper Lincoln Navigator (2003-2006)