What Is a Pushrod on a Semi Truck?
Learn what a pushrod is on a semi truck, how it works with air brakes, why it matters, and what CDL drivers should inspect before every trip.
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 Hopper Bottom Trailer?
Learn what a hopper bottom trailer is, what it hauls, how it unloads, and why it’s one of the most common trailers in agriculture and bulk commodity trucking.
What Is a Sleeper Cab? Everything New CDL Drivers Should Know
Learn what a sleeper cab is, what’s inside, who uses one, and how it compares to a day cab for long-haul trucking careers.
Understanding the Fifth Wheel on a Semi Truck
Learn what a fifth wheel is, how it works, why it’s important, and how every CDL driver uses it to safely connect a tractor and trailer.
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.
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 Dump Trailer? A Complete Guide for CDL Drivers
Learn what a dump trailer is, how it works, what it hauls, and how it compares to hopper bottom, flatbed, and lowboy trailers.