Okay everybody, I am getting mixed up here.
Do the 51 Suburbans and or panels have a drivers side vent or not.

I have seen a couple of picture here and there with people stating that they have a 51.
But some have the vent some don't?

Did they have a with or without option?
Is it an early 51 to a later 51?
Or, did the doors and hood sides get swaped out?
WHAT IS IT??

Javier
Javier