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Pressure relief valve on door jamb
I am painting my 72 GMC and when I took the relief valve off the door jamb I noticed that the steel at the bottom of the vent is slightly bent in, not flat. I dont know whether it is supposed to be that way or not, I looked at the other door as a reference and just noticed it has no relief valve on the jam. Now I have two questions, is the slight bend under the valve stock and why is there no valve on the passenger door? It seems like both should have one.
Thanks for any info! Aaron
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