Quaife differential

(prices inclusive of VAT)

Prices for supply and fitting

  • Mito 1.4 TB 155 BHP - from £1,100
  • 159 / Brera 2.4 JTD - from £1,650 (involves removal and complete strip down of gearbox)
  • Alfa Romeo GT 1.9 JTD 16v and 3.2 V6 24v - from £1,100
  • Alfa Romeo 156 2.4 JTD 10v, 2.5 V6 24v and GTA - from £1,100
  • Alfa Romeo 147 1.9 JTD 8v/16v and GTA - from £1,100
  • Alfa Romeo GTV/Spider 3.0 / 3.2 V6 24v - from £1,100


The famous Quaife ATB (Automatic Torque Biasing) limited slip differential is one of the world's most popular performance upgrades for Alfa Romeos. This unique device transforms the way cars apply power to the road, offering a significant increase in traction, acceleration, cornering speeds and handling. This has proved to be a fantastic modification and is vastly more reliable than the weak original differentials. The Quaife differential is the more superior of the two differentials and has a retail price of £858 (including VAT), excluding the parts required to fit it. Autolusso have done a volume deal to bring the best possible engineering at a reasonable price to the Alfa commuity.

The Quaife ATB Helical LSD differential for Alfa Romeos is a direct replacement for the standard Alfa Romeo open differential. Unlike a conventional plate-style limited slip differential, the Alfa Romeo Quaife ATB Helical LSD differential relies on gears rather than clutch plates for its operation. This means it is much smoother in operation.

The Alfa Romeo Quaife ATB Helical LSD differential never locks harshly with a set pre-load of wheel slip across the driven axle, like a conventional LSD. Rather, the Alfa Romeo Quaife ATB Helical LSD differential automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree, and never locks.

The Alfa Romeo Quaife ATB Helical LSD differential has many benefits over a standard open differential, including maximising traction and minimizing wheelspin, 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 Alfa Romeo Quaife ATB Helical LSD differential is proven in racing, rallying and road use, and is produced from Corus steel billets, CAD designed and CNC machined, and inspected to ISO 9001 standards.

With over 370 applications, the Quaife ATB Helical LSD differential is second to none. Accept no imitations!

*Prices include VAT. Prices may vary depending on the condition of the car, related components and the labour involved in removing these components. If additional items and/or work are required, there will be an additional cost which will be explained to you before and after the work is carried out.