Chevy Interior question

What do you call the pc that goes inside the window channel that makes it water proof. I need both front and back for my 51 chevy as they seem to broke or missing completely.

Thanks guys for all the help

wayne

 

which window? front? back? side? door? vent? quarter?

 

Inner and outer window seals, then there is window guide felts that actually go in the channel that the glass rides on. Your probably talking about the outer window seals.