The lights are the same for the impala, crown, tour, whatever. The problem is the shaft. You drill a hole throug your pillar then cut a 1/2 circle out of the door frame for the door close around the light. Look at a police car closely you will see what im talking about. Its not hard but pretty much not reversiable either. unless you buy a new door. Hence the reason for so many retired cop cars that still have lights.
