The Yukon Gear & Axle YP FSD44-3-30DN Full Spool is a cost-effective way to convert a compatible Chrysler Dana Spicer 44 differential to 100% lockup. Designed to install in place of the original differential carrier assembly, this performance spool delivers constant traction to both wheels, making it well suited for dedicated off-road vehicles and drag racing applications. It is not recommended for street-driven vehicles because both axle shafts remain fully locked together at all times.
Constructed from high-quality 8620 steel, the Yukon full spool is heat treated for increased strength, durability, and long service life in demanding performance environments. Its robust design provides reliable power transfer for applications that require maximum traction rather than everyday driving comfort or differential action. The spool is engineered for Chrysler Dana Spicer 44 axles using 30-spline axle shafts and is intended for 3.73-and-down gear ratios.
Before installation, verify axle, spline, and gear-ratio compatibility with your vehicle and drivetrain. Professional installation is recommended to ensure correct setup of the differential carrier assembly and related components. The Yukon Gear & Axle YP FSD44-3-30DN is a purpose-built traction solution for competition and off-road use where full-time lockup is required.
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