Description Reviews The Wavetrac Differential (LSD) powers both drive wheels under all conditions, instead of just one. With an ordinary open differential, standard on most cars, a lot of precious power is wasted during wheel spin under acceleration. This happens because the open differential shifts power to the wheel with less grip (along the path of least resistance). The Wavetrac LSD, however, does just the opposite. It senses which wheel has the better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel. In cornering, while accelerating out of a turn, the Wavetrac biases power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed. This can give you a 2 to 3 second better lap times! The Wavetrac Differential brings current gear technology to the market. Internally, its gear tooth forms are optimized for strength and improved oil film retention over competitive designs. Our gear package is smaller, reducing overall mass, yet is more durable since particular attention was paid to the tooth strength - optimized for high torque conditions. Attention was also paid to the side gear/axle interface, putting as much material thickness as possible in this critical area - most important when power levels get high. Each Wavetrac Differential is crafted from the highest quality materials available. The internal gears are made from high strength 9310 alloy steel. The diff bodies are machined from case-hardened steel billet. To complete the package, every Wavetrac differential is built exclusively using high quality, high strength fasteners from ARP, the world leader in fastener technology. Innovative: Patented Wavetrac design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing diff design. Maintenance Free: As supplied new, the Wavetrac differential will perform a lifetime of service without maintenance or rebuilds. Customizable:If desired, you can alter the diff’s behavior to suit your needs using optional components. Limited LIFETIME Warranty: All Wavetrac differentials include a transferable, Limited Lifetime Warranty. Note: Wavetrac recommended fluids are Motul 75w90 for more stock applications or Motul 75w140 for more all out race car applications Install Note: When installing an LSD, don't forget to buy a set of bearings.