Quaife ATB front differential 6.5": Ford Sierra & Escort Cosworth 4wd (QDF16Z) QUALSD8

£1,072.50 (inc VAT)
(ex VAT) £893.75

Free Uk Delivery available

The Quaife ATB - As a direct replacement for the standard, factory ‘open’ differential, Quaife’s ATB unit can transform the performance of your car. Unlike a conventional plate-style limited slip unit, these units rely on gears, rather than clutch plates for its operation. That means it’s much smoother in operation, because unlike a conventional plate-style LSD, it never locks harshly with a set pre-load of wheel slip across the driven axle. Rather, it automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree and never locks.

To the driver (especially of a front-wheel drive car), the results are significant performance improvements; superior, controllable traction without the harsh steering wheel snatch or torque steer that have long been associated with performance differentials. These traction benefits can also be utilized in rear wheel drive vehicles, while Quaife ATB units offer significant traction advantages fitted to the front of four wheel drive cars.

The Quaife ATB differential has been designed to use the standard transmission oils and is covered by a limited lifetime warranty for both road and competition use. This makes the Quaife ATB differential a true 'fit and forget' upgrade that offers compromise-free performance and reliability. Key features of the Quaife ATB helical gear limited slip differential include:

  • Safe, progressive and seamless in action, the Quaife ATB differential never 'locks'
  • Controlled power is transmitted to all driven wheels, to maximise traction and minimise wheelspin, particularly in slippery conditions
  • Fitment eliminates unwanted torque steer, understeer or oversteer
  • Designed to work in harmony with road car OEM electronic stability programs
  • Improves braking performance by reducing lock ups and minimises ABS intrusion
  • Reduces tyre wear, especially on front wheel drive cars
  • Gear operated with no components to replace - ever
  • Direct replacement for factory standard 'open' differential unit
  • Retains normal axle lubrication systems and maintenance schedule
  • Over 250,000 units sold worldwide since the 1980s
  • Backed by the confidence of a Quaife limited lifetime warranty

Recommend purchasing new diff bearings as the old ones will be pressed on the original diff housing GBBC604

Application:
  • Ford Escort RS Cosworth 4wd T34 1992-06/1994
  • Ford Escort RS Cosworth 4wd T25 06/1994-1996
  • Ford Sierra Sapphire RS Cosworth 4wd 1990-1992
More Information
Part NoQUALSD8
Product GroupDifferential LSDs & ATBs
Stock StatusAvailable From Stock
Catalogue 2024 PageClick HERE to view this part on page 105 of our 2024 catalogue
Brand LogoQuaife
Fits Model VariantFord Escort Cosworth, Ford Sierra (4WD Cosworth)
Shipping & Delivery

We aim to dispatch all stocked orders either same day (Monday-Friday) or by the following working day (subject to time of order). Orders are shipped by DHL courier service.

For orders that require a guaranteed quick delivery, please contact our sales staff directly by phone who can advise further on your request.

Shipping Prices UK

All orders under £250 will be sent by DHL courier service
Up to 3kg £8.00
3kg-20kg £9.60

All UK orders over £250 are shipped free of charge by DHL.

Shipping Prices Overseas

All deliveries are sent by DHL courier service. Most European countries have the option of an Economy Road Service (with prices starting from £26.00) and Express Air Service. All non-European countries are sent by DHL Air Express. To get a quote for shipping, simply enter the items into the cart, click on ‘My Cart’ and select your country. You do not need to be logged in to use this service.

Note: we are unable to export dangerous goods such as aerosol cans and such items must be removed from the cart before you can proceed with your order.

The Quaife ATB - As a direct replacement for the standard, factory ‘open’ differential, Quaife’s ATB unit can transform the performance of your car. Unlike a conventional plate-style limited slip unit, these units rely on gears, rather than clutch plates for its operation. That means it’s much smoother in operation, because unlike a conventional plate-style LSD, it never locks harshly with a set pre-load of wheel slip across the driven axle. Rather, it automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree and never locks.

To the driver (especially of a front-wheel drive car), the results are significant performance improvements; superior, controllable traction without the harsh steering wheel snatch or torque steer that have long been associated with performance differentials. These traction benefits can also be utilized in rear wheel drive vehicles, while Quaife ATB units offer significant traction advantages fitted to the front of four wheel drive cars.

The Quaife ATB differential has been designed to use the standard transmission oils and is covered by a limited lifetime warranty for both road and competition use. This makes the Quaife ATB differential a true 'fit and forget' upgrade that offers compromise-free performance and reliability. Key features of the Quaife ATB helical gear limited slip differential include:

  • Safe, progressive and seamless in action, the Quaife ATB differential never 'locks'
  • Controlled power is transmitted to all driven wheels, to maximise traction and minimise wheelspin, particularly in slippery conditions
  • Fitment eliminates unwanted torque steer, understeer or oversteer
  • Designed to work in harmony with road car OEM electronic stability programs
  • Improves braking performance by reducing lock ups and minimises ABS intrusion
  • Reduces tyre wear, especially on front wheel drive cars
  • Gear operated with no components to replace - ever
  • Direct replacement for factory standard 'open' differential unit
  • Retains normal axle lubrication systems and maintenance schedule
  • Over 250,000 units sold worldwide since the 1980s
  • Backed by the confidence of a Quaife limited lifetime warranty

Recommend purchasing new diff bearings as the old ones will be pressed on the original diff housing GBBC604

Application:
  • Ford Escort RS Cosworth 4wd T34 1992-06/1994
  • Ford Escort RS Cosworth 4wd T25 06/1994-1996
  • Ford Sierra Sapphire RS Cosworth 4wd 1990-1992
More Information
Part NoQUALSD8
Product GroupDifferential LSDs & ATBs
Stock StatusAvailable From Stock
Catalogue 2024 PageClick HERE to view this part on page 105 of our 2024 catalogue
Brand LogoQuaife
Fits Model VariantFord Escort Cosworth, Ford Sierra (4WD Cosworth)
Shipping & Delivery

We aim to dispatch all stocked orders either same day (Monday-Friday) or by the following working day (subject to time of order). Orders are shipped by DHL courier service.

For orders that require a guaranteed quick delivery, please contact our sales staff directly by phone who can advise further on your request.

Shipping Prices UK

All orders under £250 will be sent by DHL courier service
Up to 3kg £8.00
3kg-20kg £9.60

All UK orders over £250 are shipped free of charge by DHL.

Shipping Prices Overseas

All deliveries are sent by DHL courier service. Most European countries have the option of an Economy Road Service (with prices starting from £26.00) and Express Air Service. All non-European countries are sent by DHL Air Express. To get a quote for shipping, simply enter the items into the cart, click on ‘My Cart’ and select your country. You do not need to be logged in to use this service.

Note: we are unable to export dangerous goods such as aerosol cans and such items must be removed from the cart before you can proceed with your order.

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