Replacing rear window rubber seals on 89

It seems like many of the suburbans rust under the window rubber window seals. Noticed this after visiting the junk yard. Might aren't bad yet and I want to remove the rear side window, seal the minor rust and replace the rubbers.

Does anyone have a good reference for how to do this or is this not a do it your self job?

It seems like many of the suburbans rust under the window rubber window seals. Noticed this after visiting the junk yard. Might aren't bad yet and I want to remove the rear side window, seal the minor rust and replace the rubbers.

Does anyone have a good reference for how to do this or is this not a do it your self job?
Do you mean the side rear windows or the rearmost windows??

I'm starting on the side rear windows first but have rust starting on the rear ones and windshield too.

Coming to the conclusion that I will have to cut the rubber seals to get the window out and buy new rubber seals.

I'm starting on the side rear windows first but have rust starting on the rear ones and windshield too.

Coming to the conclusion that I will have to cut the rubber seals to get the window out and buy new rubber seals.
The best place to get the rear seals is www.lmctrucks.com
$30.00