on my 88 yota it had what i have heard of as vent pillars but the door on the outside. anyone no the reall name?
sail panel vent , B piller vent or quarter ventilation louver and they actually vent the air out of the cab .. for example , when you close your door , the cab pressure caused by that action creates "hi pressure" , same when you turn on your heater or A/C . With out the vents , the door would be much harder to close , and your heater or A/C opperation wouldnt work correctly .