Category: Transmissions


  • Heavy-Duty and Off-Highway Truck Transaxle Components: What You Need to Know

    For heavy-duty trucks and off-highway vehicles, the drivetrain is the backbone of performance. At the heart of that drivetrain is the transaxle—a critical component that combines the functions of a transmission and drive axle into one integrated unit. In demanding applications such as construction, mining, and long-haul transport, a transaxle must deliver maximum torque, handle…

  • A Brief History of the Automated Manual Transmission (AMT) in Heavy Trucks

    Automated Manual Transmissions (AMTs) are hybrid gearboxes that combine the internal mechanism of a traditional manual transmission with electronic controls to automate clutch engagement and gear shifting. In essence, an AMT uses a standard manual gearbox (with its multiple gear sets and clutches) but relieves the driver of having to operate the clutch pedal or shift lever. Instead, computer-controlled actuators handle all clutch and shift…

  • Remanufactured vs Rebuilt vs Used: What’s the Difference?

    Choosing the Right Drivetrain Components for Your Heavy-Duty Truck When it comes to replacing critical drivetrain components—like transmissions, differentials, transfer cases, or power take-offs (PTOs)—heavy-duty truck owners and fleet managers face an important decision: should you go with a remanufactured, rebuilt, or used part? Each option has its place, but understanding the technical differences and…

  • What is a Dynomometer?

    How Precision Testing Powers Quality in Every Truck Part We Sell When it comes to truck parts and heavy-duty equipment, performance isn’t just a matter of horsepower — it’s about reliability, safety, and confidence mile after mile. That’s why companies committed to excellence like General Truck Parts go the extra mile with rigorous testing methods…

  • The Legacy of Dana and Spicer: A Deep Dive Into Two Icons of the Trucking Industry

    When it comes to the evolution of truck drivetrains, axles, and power transfer systems, few names are as influential as Dana® and Spicer®. For over a century, these brands have helped shape the modern trucking and automotive industries by pioneering some of the most durable and efficient components ever produced. Understanding their history not only…

  • The Remanufacturing Process: How We Bring Transmissions and Differentials Back to Life

    At General Truck Parts, we understand the critical role that transmissions and differentials play in the performance and safety of heavy-duty vehicles. Our remanufacturing process is designed to restore these vital components to like-new condition, ensuring reliability and longevity for our customers. 1. Core Evaluation and Selection The journey begins with the careful selection of…

  • Understanding the Anatomy of a Heavy-Duty Truck Transmission

    A guide to what’s inside, how it works, and why it matters When it comes to the performance and reliability of heavy-duty trucks—on the highway or off the beaten path—the transmission is the unsung hero. Whether you’re running a long-haul fleet or managing off-highway equipment in harsh environments, understanding what’s inside a heavy-duty transmission can…

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