What do Twin Traction, Positraction, Safe-T-Track, Anti Spin, Traction-Lok, Directed Power, Power-Lok, Spin-Resistant and Sure-Grip have in common? If you said they are all limited slip differentials, you are correct. These are marketing names for various brands that use the limited slip differential design.
How it Works
A limited slip differential allows power to transfer to each side at different rates. This design ensures both wheels spin equally, regardless of traction differences. To understand why this matters, it helps to know how a standard open differential works.
Open vs. Limited Slip Differentials
A traditional open differential applies equal torque to each side. If one tire is on ice, the side with traction is limited to the amount of torque the slipping side receives. This often isn’t enough to move the vehicle, leaving it essentially stuck.
The Advantage of a Limited Slip Differential
With a limited slip differential, power transmits to both wheels and balances through its internal components. This setup allows both tires to spin at equal rates, improving traction and enabling the vehicle to launch straight, even when one wheel has less grip.
Inside the Limited Slip Differential
Internally, these differentials typically use a clutching mechanism to transfer power. Some designs feature a series of clutches, while others use a cone-style clutch with a large spring to keep the clutch engaged. This design balances power transfer while allowing for smooth cornering without the harsh chatter found in locked rear ends.
Smooth Power, Confident Handling
Limited slip differentials offer the best of both worlds. They provide complete power transfer to both wheels while allowing smooth cornering, making them a popular choice for performance and off-road applications.
This video is sponsored by the Pronto Network.
