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Re: Windows keep fogging up
Posted to HD/Fleet Forum on 1/8/2018 1 Reply

Hello Dave!

The 379 and 387 have a vent, on the floor behind/beside the drivers seat about where the seat belt attaches to the floor. It is black plastic and vents out under the sill beneath the cab. If the truck in question does a lot of gravel they will fi... Login to read more.

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