You need to open the door, loosen the door striker screws just enough to allow movement of the door striker, adjust the door striker up or down and inboard or outboard as required, apply modeling clay or body caulking compound to the door lock opening, close the door far enough for the striker to make an impression into the modeling clay or body caulking compound, open the door and check the door striker impression in the modeling clay or body caulking compound, and readjust door striker as required, add or remove spacers as needed.
By BobGM Specialist
29/10/2022