rear window replacement adhesive?

[72tutone]

Is is required to put adhesive on the seal or on the cab when replacing the rear window? I would assume the seal is good enough, but want to check first.

[Katrina/10]

I put a new gasket on my rear window and it still leaks. Interested if there is a sealer that can be applied to fix this.

[AirSpeed]

I have replaced three rear windows in my trucks and have never used any sealer, same thing with the windshields. As long as you get a quality rubber seal you should have no problem. When I painted my last truck I bought a new windshield and rubber and it leaked in the lower right corner, I pushed the rubber seal around and the leak stopped immediately.
You should be fine without any sealer. Who ever replaced the windshield in my truck before I bought it used sealer, everywhere he used it the windshield frame rusted, it took forever to scrape it all out and clean up the rust. I think sealer would actually make things worse by holding water and dirt in there.
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[fastwillie 696969]

i used ky jelly and string

[Willys47]

Originally Posted by fastwillie 696969

i used ky jelly and string

that is just too much info for me

[ChevLoRay]

Originally Posted by AirSpeed

......Who ever replaced the windshield in my truck before I bought it used sealer, everywhere he used it the windshield frame rusted, it took forever to scrape it all out and clean up the rust. I think sealer would actually make things worse by holding water and dirt in there.
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It isn't the sealer, per se, but the KIND of sealer. If you use a silicone sealant, be absoutely positive that it is an automotive variety. Silastic, a silicone sealer/adhesive, gives off glacial acetic acid, as it cures. That acid will cause rust. My '69 cab had what must have been about three tubes of it, daubed everywhere it didn't need to be. My firewall was swiss cheese.

Glass shops nowadays, use urethane. I don't think we need it for the gaskets in our trucks, but I'm sure someone on here knows for sure....whether we need anything, or nothing. Nothing would be better than the wrong thing. Maybe some 3M weatherstrip adhesive is all we need, and I know it's an automotive grade.....yeah, that stuff we also call "snot" in a tube. Use the black, though.

Here's what the GE Silastic will do: