On a tractor trailer wheel well, brush is used to make it more aerodynamic and keep debris from flying up. From a company that manufactures them.
Rick
To get the shoulder of your shirt dirty while pulling the pin, especially when it is raining, ask me how I know, lol.
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Anybody know what those brushes on the wheel wells of UPS trailers are supposed to do? You know, the ones that look like mustaches over the wheels. Just curious.
HOS:
Hours Of Service
HOS refers to the logbook hours of service regulations.