Jack,
Are you talking about the window run channel? Essentially the channel the window rides in to keep it straight going up or down? Well, we only need to worry about the front doors. Several months ago a guy was selling two run channels from a wagon in Iowa on eBay. Not having mine unpacked yet, I bought the pieces for about twenty dollars. Stuff is perfect.
That said, GM doesn't deviate too far from model to model on the internal hardware. If you have a local restoration shop, a guy could ask somebody that works there to look at some run channel for a 70-72 Chevelle, maybe even a 78-87 CK pickup. That stuff is all repopped these days. I'm guessing it's not too far off and no one will ever see it. I don't have that luxury and is the reason why I end up buying stuff I don't need (yet), to make it work or save it for another day.
Just dumb luck on my part, but when I originally started working the car over several years ago, I ordered all the GM weather-strips. I have four boxes that I haven't opened yet or deciphered the part numbers to determine exactly what I have.
I guarantee that was dumb luck, there’s no way I can shoot that straight. I attached a photo of what the inside of the G-Body Wagon doors look like. When I clicked on the photo, it got a lot bigger. Maybe it will help someone.
Scott, ...:arrow: :arrow: :arrow: 8)