Cab vents

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Gr8bawana

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Does anyone know what the purpose of the vents located behind the rear seat in the cab wall? I noticed dust coming in while riding in the back seat on a dusty road.
Would it harm anything to seal them up?
 

SitKneelBend

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Does anyone know what the purpose of the vents located behind the rear seat in the cab wall? I noticed dust coming in while riding in the back seat on a dusty road.
Would it harm anything to seal them up?
They allow the air pressure to equalize quickly. Sealing them is a bad idea as the air pressure from closing a door could break windows. Some have used a light filter material to mitigate sound and dust.
 

GTyankee

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Atcer2018

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If you’re doing a Laramie seat upgrade is it a good idea to do the upgrade in a 2017 model express while the seats are out ?
I would do it. It’s about $40 and peace of mind knowing your old vents won’t leak during the first rainstorm after you bolt those new seats in.
 
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