Quaife ATB Limited Slip Differential for Tesla Model S Small Drive Unit

This is the Quaife ATB Helical LSD differential for the Tesla Model S/X Small Drive Unit. The QDH3T directly replaces the standard open differential in the Tesla Model S/X Small Drive Units. This is essential for any performance EV build using a Tesla drive unit.

The Quaife ATB differential utilizes gears rather than clutch plates to transfer torque, resulting in smoother engagement and operation. This allows the differential to automatically bias the torque away from the spinning wheel across the axle in a continuously variable manner, as opposed to harshly locking with a fixed pre-load of wheel slip across the driven axle, like a conventional LSD.

The ATB differential has many benefits over a standard open differential, including maximizing traction and minimizing wheel-spin, eliminating torque steer and snatching in front wheel drive cars compared to conventional LSD units, and a maintenance-free design which retains the standard oil lubrication.

The ATB differential is proven in circuit and drag racing, rallying and road use, and is produced from Corus steel billets, and is CAD designed and CNC machined, then inspected to ISO 9001 standards.