vent window interchange

[kglowacky]

Now working installing my door vents and windows. Do9es anyone know if all vent windows frames are the same from 73-86. When I try to install my vent window frames there seems to be an issue on a little bracket right below the vent handle side that spreads the door apart. I could cut this bracket off but before I do I was wondering if I have the wrong vent windows as I did have the wrong regulators and motors. Also my door glass has a black square painted on it . It looks factory anyone ever seen this before. I can scrape it off . See pictures.