Ford Racing Torsen limited-slip differential for 2004–2017 F-150 4x4 front axles (8.8" ring gear) uses a worm-gear, torque-sensing design that avoids the wear issues of clutch-type units. The full-time Torsen action biases torque to the wheel with the most traction and provides smooth, immediate response for street, strip or off-road use. It’s specified to deliver consistent traction without the abrupt engagement of clutch-based systems.
Ford Racing 04-17 F-150 4x4 8.8inch Front Axle Limited Slip Torsen Differentials