They actually made the horizontal lights in 94 and 95 and then switched to verticle when the new modular engine came about. the horizontals are specific to the 5.0%26#039;s and also the garbage v6%26#039;s|||Why Ford switched from horizontal to vertical on the taillights? The vertical resembled the original 64 Mustang taillights. IMO they also look much better.
I think the horizontal design was 94 and 95.|||Complaints, suggestions, bad viewpoint.|||They had to change something !