Eaton NoSPIN locking differential
NoSPIN maximizes traction by delivering 100% of the torque and power to both drive wheels. It is engineered to keep both wheels in a constant drive mode, yet has the ability to automatically "unlock" during vehicle turning to permit necessary wheel speed differentiation. The NoSPIN is "trouble free" and does not require special lubricants or service adjustments.
Conventional differentials allow vehicles to get stuck when they lose traction on one side. NoSPIN continues to drive your vehicle even if one of the wheels is suspended in the air.