Posted on 9/26/2025
When it comes to heavy-duty vehicles, towing performance, or off-road builds, the design of the axles plays a significant role in both durability and capability. If you’ve ever looked into upgrading your axle setup or had work done on your differential, you may have heard the terms "full-float" and "semi-float." These refer to how the axle handles load and torque—and the differences matter more than most drivers realize. Understanding these two axle types helps you make informed decisions, whether you're customizing a truck, hauling serious weight, or simply curious about how your drivetrain works. What Does “Float” Mean in Axle Terms In basic terms, the word “float” describes how the axle shaft supports weight and handles motion. In a semi-float axle, the shaft itself bears the weight of the vehicle and transmits power from the differential to the wheels. In a full-float axle, the shaft’s only job is ... read more