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Quaife ATB differential: Atlas axle 16 spline (QDF6Z/16) QUALSD2

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Quaife ATB differential: Atlas axle 16 spline (QDF6Z/16) QUALSD2
No Tax, Each £400.00 Taxed, Each £480.00
Available From Stock
Free UK Delivery Available
As a direct replacement for the standard, factory ‘open’ dif....


As a result of a special high volume deal between Burton Power and Quaife, selected genuine Quaife ATBs (including this one) are now available at a highly discounted price. This allows you the customer to benefit from owning a high quality genuine Quaife unit at a price close to the Chinese copies that are beginning to appear on the market. Why take a chance on a cheap copy when you can enjoy the real thing for only a fraction more?. For more details, click here.

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

Atlas Axle: Originating in the 1960s from the Transit Mk1, the Atlas axle was soon transferred to the Capri as a heavy duty alternative to the English axle for the powerful V6 models. It is referred to as the ‘Salisbury’ axle in the Ford parts lists and Type D in the Ford workshop manuals. Note that ‘Salisbury’ is simply the design/style of axle which is common amongst many different manufacturer makes (this name should not be confused with Salisbury LSD units that fit the English axle).

The Atlas was made the standard axle fitted to most of the Capri Mk2/3 range but reserved only for the 2.0/2.3 Cortinas. It continued in the Transit range up to the late 1980s and a version of this axle was also fitted to the Sierra based P100s.

Its durable design, by using stronger casings, stronger tubes and larger crown wheels and pinions, make it ideal for competition applications. They are most commonly used in Escorts as a baby or narrow Atlas, which are basically a Mk1 Capri unit.

Identification: The Atlas axle has an integral differential housing with a rear inspection cover bolted to the casing, but so does the similar looking Koln axle. Check the 3 bolts top and bottom that secure the rear cover – the Atlas unit has evenly spaced bolts whilst the Koln is uneven.

Standard halfshaft spline is 16 teeth. ZF Group 4 uses 18 teeth (competition only).

Oil capacity is approx 1.1 litres.

Additional Information

Additional Information

Fits Axle Type Atlas Axle
Product Group Differential LSDs & ATBs
Stock Status Available From Stock
Catalogue 2018 Page Click HERE to view this part on page 104 of our 2018 catalogue
Brand Logo Quaife
Fits Model Variant Ford Capri Mk1 (All), Ford Capri Mk2/Mk3 (All), Ford Cortina Mk3/Mk4/Mk5, Ford Escort Mk1 (All), Ford Escort Mk2 (All)
Free Shipping Free UK Delivery Available

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