During a slip event, it is engineered to send more torque to the high-traction wheel end and automatically return to full differentiation as conditions change, transmitting engine power and enabling stable turns. Featuring a lightweight five-pinion pair design, Spicer Trac-Lok has no wiring or pneumatic connections, and no special lubricants or friction modifiers are required. It can be retrofit with existing Spicer S110, S111, S130 and S140 medium-duty drive axles with no wiring, sensors, air hoses or pneumatic connections, and it does not require switches, special lubricants or friction modifiers to operate.
Dana Inc., www.spicerparts.com/trac-lok