What Are Brake Shoes on a Semi Truck?
Learn what brake shoes are on a semi truck, how they work with drum brakes, and why they’re one of the most important parts of your air brake system.
Trucking Glossary
Learn the meaning of common trucking terms, abbreviations, acronyms, and industry vocabulary used by professional truck drivers throughout North America.
What Is a Blindside Back in Trucking?
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.
What Is a Differential on a Semi Truck?
Learn what a differential is on a semi truck, how it works, why it’s important, and how it helps commercial trucks turn safely and efficiently.
CDL Endorsements Explained and Which Ones You Really Need
Learn what CDL endorsements are, what each endorsement allows you to drive, and which ones are worth getting to expand your trucking career opportunities.
What Is a Steer Axle on a Semi Truck?
Learn what a steer axle is on a semi truck, how it works, why it’s important, and what CDL drivers should inspect before every trip.
What Is a Slack Adjuster on a Semi Truck?
Learn what a slack adjuster is, how it works, why it’s important, and what CDL drivers should inspect before every trip.
What Is a Brake Chamber on a Semi Truck?
Learn what a brake chamber is, how it works, why it’s essential for air brakes, and what every CDL driver should inspect before every trip.
What Does Bobtail Mean in Trucking?
Learn what bobtail means in trucking, why truck drivers bobtail, why it’s more dangerous, and how it differs from deadheading.
What Is a Brake Drum on a Semi Truck?
Learn what a brake drum is on a semi truck, how it works with air brakes, and what CDL drivers should inspect before every trip.
What Is a Dry Van Trailer? The Most Common Trailer in Trucking
Learn what a dry van trailer is, what it hauls, why it’s the most common trailer in trucking, and how it compares to reefer and flatbed trailers.
What Is a Catwalk on a Semi Truck?
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.
What Is a Tractor in Trucking?
Learn what a tractor is in trucking, how it differs from a truck, why it’s called a tractor, and how it works with a semi trailer.