Trucking Glossary

Learn what deadhead means in trucking, why truck drivers deadhead, how it affects profits, and how it differs from bobtailing.

Learn what a Jake brake is, how it works, when to use it, why it’s loud, and why it’s one of the most important safety features on many semi trucks.

Learn what a PTO is in trucking, how a power take-off works, what trucks use it, and why it’s essential for dump trucks and other commercial equipment.

Learn what off-tracking is, why semi trucks cut corners, what causes it, and how CDL drivers safely manage turns to avoid accidents.

Learn what an S-cam brake is, how it works, why most semi trucks use it, and what CDL drivers should inspect before every trip.

Learn what a sight-side back is, why truck drivers prefer it, and how it compares to a blindside back when backing a semi truck safely.

Learn what a tandem axle is, how it works on semi trucks and trailers, why it matters, and how it affects weight distribution, safety, and DOT compliance.

Learn what a pigtail is on a semi truck, what it does, why it’s important, and how to inspect it before every trip.

Learn what air lines are on a semi truck, how they work, why there are two of them, and what CDL drivers should inspect before every trip.

Learn what a blindside back is, why it’s more difficult than a sight-side back, and how truck drivers safely perform this important backing maneuver.

Learn what a catwalk is on a semi truck, what it’s used for, why drivers use it, and how to stay safe while working behind the cab.