Our Ask Tony and Tucker question comes from Doug in Oakton, Virginia. Doug wants to know, "What is the purpose of those small doors on the back of large tractor trailers?"
For the answer, we turned to Troy Taylor.
He's a professional semi-tractor trailer driver and joined us by phone.
KMSP-TV11358 Viking DriveEden Prairie, MN 55344
Phone: (952) 944-9999Fax: (952) 942-0455