fresh air vents

[major50]

i am putting my 69 gtx passenger side fresh air vent back on, this is an ac car. the pass. vent that connects to the heater box, how does it connect to cowl. there are no screw holes. if you have a pic of one i would like to see it to see what i am missing

 

[Mark B]

I don't have a picture but there are 2 J bolts that hold it up to the cowl.

 

[major50]

I don't have a picture but there are 2 J bolts that hold it up to the cowl.

thanks, i was wondering what those two bolts did. they are in my ac box parts bucket now i know where they go. is there a good pic of an ac box installation on the site