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Quaife ATB Differential






  • Maximizes traction and minimizes wheelspin
  • Proven in drag and circuit racing, rallying and road use
  • Eliminates torque steer and snatching in fwd cars compared to conventional LSD
  • Maintenance free design and retains standard axle lubrication
  • Produced from CORUS steel billets throughout
  • CAD designed and CNC machined then inspected to ISO 9001 standards
  • Used by Ford, GM and Daimler-Chrysler as original equipment
  • Massive range available, from Alfa Romeo to Volvo
  • Beware of cheap imitations!

Reliability is total; the ATB Helical LSD units are designed using the latest CAD techniques and are CNC machined to ultra-tight tolerances from the very best CORUS steel billets. The completed units are then subject to rigorous in-house inspection on a tri-coordinate measuring machine before being dispatched to the customer.

Such quality means that unlike a conventional plate-style LSD the QUAIFE ATB Helical LSD unit requires no special maintenance or rebuilds, long lasting and it retains the standard method of lubrication, making for an easy, pain-free upgrade.

Proven in rallying, racing and on the road, the ATB Helical LSD differential offers safe, reliable, winning performance – everything you’d expect from a QUAIFE product.

AS ENGINE POWER outputs increase ever further, the ability to utilize this extra performance becomes more important. Wheelspin may look spectacular, but such losses of traction waste time either from a standing start or exiting a bend, whether driving on the road, circuit, rally stage or drag strip. Fortunately, QUAIFE’s patented Automatic Torque Biasing (ATB) Helical LSD differential is an effective, well-proven, low-cost solution.

As a direct replacement for the standard, factory ‘open’ differential, QUAIFE’s ATB Helical LSD unit can transform the performance of your car. Unlike a conventional plate-style limited slip unit, QUAIFE’s ATB Helical LSD unit relies 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 Helical LSD units offer significant traction advantages fitted to the front of four wheel drive cars.

If you do not see your application listed, feel free to contact us for pricing and availability.

***Most of these items are not always kept in stock. Please contact us before placing your order to inquire about availability.***

Picture is for display purposes only and may not represent the differential for your application.

Applications: Honda Accord 1990-97, Prelude 1992-96, Prelude 1997-00 (except SH) QDF5U
Honda Acura Integra GS-R 1994-2000 / Civic Type R QDF6U
Honda Civic Si 1999-2000 VTEC dohc, del sol VTEC dohc, Integra GS/ LS 90-00, Integra GS-R 92-93 QDF1U
Honda Civic DX, CX, VX, LX, HF, and HX 88-00, Also EX 88-91 (35mm bearings) QDF4U
Honda Civic CRX Si/EX models 88-99, except 90-91 Si 40mm bearings QDF7U
Honda Civic EP3 Type R, Acura K20 QDF9U
Honda Civic EP3 Type R, Acura K20 (Drag Race Specific Version) QDF9U.23G
Honda Civic D17 (must use Honda Fit ring gear bolts; 90018-PWL-000 x10) QDF15U
Honda Fit, 5Spd QDF15U