You want something like this. Just a sample, not plugging the dealer.

https://www.opgi.com/gaskets-seals/weatherstrip-seals/original-style-window-felts/window-felts-70-72-chevelle-coupe-8-pieces-original-round-style-wc15111.html

 

I’ve installed all the felts and seals. I think one got missed. I just don’t know which one.

 

Ryan I think you are missing 2 items.
1) The vertical anti rattle filler inside the 1/4 panel area. It slips onto the vertical channel that has a recess for it to clip on to.
2) It appears that there is no fuzzy on your inside panel cover.

Others may have pictures to post.

 

Don't know if this pic will help but it is a 71. I have not replaced anything yet and as you can see it is ratty.

 

You need these seals. Most of the vendors sell them.

For Chevy Chevelle 1970-1972 SoffSeal Rear Inner Quarter Window Seal Strip | eBay

 

Chris. What do these attach to then?

 

Levon and Ryan, I dont believe that there is a window channel for the quarter window if it operates.
There is a window channel from OPGI for a non-operating window.
Glass Run Channel, Quarter, Beaded, 1968-72 GM A-Body, 2dr SDN, Non-Op 1/4 @ OPGI.com

68-69's have them but not the 70's and up. They have the roof channel that runs the length of the opening.Nothing on the backside.

 

Look inside the cavity on the end. You should see a lip of metal for them to push over.

 

Yes but I can't find a picture at the moment.

 

Found 1 site but currently not available.

1970 - 1972 Chevelle Rear Quarter Window Rubber Seal Weatherstrips, Pair

New correct design REAR quarter glass window rubber vertical seals that clip into the body of the car. Exact shape with inner steel core, like originals. Fits all 1970, 1971 and 1972 Chevelle 2 door hardtop.

www.musclecarcentral.com

 

The primerd flange on the far right is the headliner trim. The only thing that goes on that, is the headliner.

 

Here's another discussion on the seals. Often overlooked.

70 Rear Quarter Glass Rubber

On the 70 there is roundish rubber filler at the rear of the quarter window opening between the inner plastic windlace that snaps over the headliner edge and the glass. It appears this rubber is there to stabilize the rear edge of the glass and also to keep the glass tight to the roofrail...

www.chevelles.com

 

Year One shows them as well.

Soffseal 5023 Quarter Window Vertical Sealing Strip Pair ...

YEARONE Classic Car Parts for American Muscle Cars | Barracuda Cuda Challenger Charger Chevelle Road Runner Camaro Super Bee Dart Duster Valiant Firebird GTO Cutlass 442 Mustang Nova GM Truck Skylark GS Monte Carlo El Camino Mopar Chevy

www.yearone.com

 

in the picture theres a filler piece between the moldings , the drip rail molding and the chrome window molding seal that attaches to the roof and sit on the quarter panel.. whats that called and where can you buy them

 

Right to left in the attached pictuer is the: Drip Rail Gutter trim, the window felt seal, then there should be the rear window quarter seal (but its missing in the photo), and from above is the roof drip rail molding that holds the weatherstripping for the window. Lastly in the felt seal on the inside interior panel.

 

Check Ausley’s Chevelle Parts 1970-72 Rear of Quarter Window Rear Vertical Seal $34.95 SKU:QWS5023