A semi-truck driveline, also known as a drivetrain, is an all-encompassing semi-truck component that directs power from the transmission to the wheels so that the truck can move. As one would imagine, a reliable driveline is especially crucial for truckers whose jobs mostly depend on moving units from one place to another in a timely manner. What makes for a reliable driveline is the effort that one puts into maintaining it. Comprised of driveshafts, transfer cases, axles, differentials, and more, you may struggle to find all the parts you need in one go—but that’s where BIG Machine Parts steps in. With a complete selection of Peterbilt driveline parts in stock and ready to ship, you can stop the tiring cycle of shopping around multiple sites; instead, get everything you need all at once. Contact us today to learn more about our selection of Peterbilt driveline parts!