Yukon Gear & Axle SL D44-19 Spartan Locker Dana 44 19 Spline

The Yukon Gear & Axle Spartan Locker delivers automatic locking differential performance at an economical price point. This mechanical locking differential is engineered specifically for Dana 44 axles equipped with 19 spline axle shafts, providing superior traction when you need it most.

Key Features:

• Direct replacement for standard spider gears in your existing open differential carrier
• Constructed from high-strength 9310 steel couplers and drivers for maximum durability
• Innovative spring and pin design eliminates thrust washers for simplified installation
• Heavy-duty cross pin shaft included for enhanced reliability
• Automatic locking operation engages when traction is needed, unlocks during normal driving
• One year manufacturer warranty against defects

The Spartan Locker operates as a driver-selectable automatic locker, mechanically locking both axle shafts together when torque is applied. During turns or normal street driving, the unit automatically disengages to allow differentiation between wheels. This makes it an ideal upgrade for off-road vehicles, work trucks, and recreational vehicles that need improved traction without the complexity of electronic or air-actuated systems. Installation can be completed without removing the carrier from the axle housing, making this a popular choice for DIY enthusiasts and professional installers alike.