Which is the difference in latches between 47-51 and 52-55. My truck is suppose to have a 49 cab, but I'm not sure about the doors. They have 52-55 exterior handles and latches, but it doesn't have the vent window. Looking at pictures, it seems that 47-51 and 52-55 latches have 3 screws, but the upper one seems to be, on the 47-51 closer to the exterior of the door, while the 52-55 closer to the interior. Shall I go with what I have right now or will the 47-51 fit in order to have the door latch correctly matched to the cab year?
