It's a 1991 W150 and when I look online everywhere is saying the replacements are 6x9s but the hole in my drivers door is smaller than a 6x9 hole...???? But they do mount from the back of the door so there is that. I can cut a hole for a 6x9 but don't want to if I don't have to . Well, I forgot I still had my door panels off so went out and measured. They are 6x9s if my measurement is right. But they mount from behind the door so the hole in the door is smaller like 5x7 or so.