Classic ’65-’68 Mustang vent window frames are made of die-cast construction, which is a Heinz 57 mix of non-ferrous metals, such as zinc, copper, aluminum, lea ...

Save your factory original vent windows. Here’s how to replace 1967-1972 GMC and Chevy C10 vent window weatherstripping plus ... the air conditioner's ability to keep things nice and cool.

The introduction of the ’70 model saw the end of the vent window when it came to Chevelles. The El Camino siblings were a little slower in the design change and kept them until ’72.

For '69-'73s, the only real difference is the lack of vent window frames and the rather undesirable glue-in windows found in the 1969 model year. See All 22 Photos ...