Anybody out there have some experience with the pop open windows on the 3rd Generation Econolines?

I purchased a set of pop open windows on Craigslist only to realize that I don't have the hanging window frames that they attach to.

Does this mean I can't use these? Anyone ever install the pop open windows to a van that did not have them?

I have heard some people say they leak and I live in OR so maybe not such a good idea after all.


1978 Ford E150
1961 Ford Econoline Cargo