Quaife ATB Differential - RS

The Quaife ATB helical LSD differential for mk3 Focus RS fits the MMT6 gearbox and is a direct replacement for the standard Ford open differential.

Unlike a conventional plate-style limited slip differential, the Quaife differential relies on gears rather than clutch plates for its operation. That means it is much smoother in operation and never locks harshly with a set pre-load of wheel slip across the driven axle.

Instead, the Quaife differential automatically biases the torque away from the spinning wheel, across the axle to a constantly varying degree.

Benefits over a standard open differential:

  • Improves turn-in (helps with drift mode!)
  • Maximise traction
  • Minimise wheel spin
  • A maintenance-free design which retains the standard oil lubrication

Exclusively available via mountune, Quaife differentials are proven in circuit and drag racing, rallying and road use. All Quaife differentials are produced from Corus steel billets, and are CAD-designed and CNC machined before being inspected to ISO 9001 standards.

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