Marty, yeah its missing right now. On early models, I think 71 and older it is removable. Kind of like the cowl vent in the middle of the hood. Like a dumb ass I striped the screws out on mine then threw the part away because it was a bit rusty. I have been looking for a while for another one and cant find one. 8 screws hold it in place. where as later models it was stamped. I think the purpose of it is to bring cold air into the heater fan blower motor.