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Quaife ATB Differential, Focus ST 2013-2017
Quaife ATB Differential, Focus ST 2013-2017


 
Price:$999.00


Availability: Usually Ships in 24 Hours
Product Code: 2363-ATB-AA
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Description
 
Maximize traction and performance with the Quaife ATB helical limited slip differential for the Focus ST / MMT6 gearbox. A direct replacement for the standard Ford open differential, the Quaife ATB differential transforms your car's performance and improves cornering. 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.
Quaife PN QDF41Z

Benefits over a standard open differential:

  • Maximize traction
  • Minimize wheel spin
  • Reduced torque steer and snatching in front wheel drive cars
  • Maintenance-free design which retains the standard oil lubrication
  • 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.
  • Quaife Automatic Torque Biasing Differential - Track Tested and Proven.

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Average Rating: 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
 
Maybe the single most important upgrade November 14, 2016
Reviewer: Ken from WA United States  
From the beginning I'd intended to significantly upgrade my 2015 ST3, but was aghast at the performance of the stock differential and traction management.  Incredible nervousness, the car is all over the place just trying to get the basic power it has to the ground.  I realized that before power made sense, I had to do what Ford should have already done.

For anyone wanting the best out of their ST, this should be first on your list.  Do this and the rear motor mount at the same time.  It really will transform the handling of the car and not just on the track. I have better traction and acceleration on wet, rainy surfaces with this differential and all-season tires (pirelli pzero) than I did on dry with the stock Eagle F1s and the basic tune I had before.

Finally. even when the tires can be overloaded with power (easy with the MRX turbo), it still pulls more or less straight unlike stock.

If you're on the fence, do yourself a favor.  Just get it.

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  1 of 1 people found the following review helpful:
 
Fast Shipping and the best price February 26, 2015
Reviewer: Robert O. Redman from Waynesburg, PA United States  
This was one of the smoothest transactions I have ever made. Had the differential in 4 days. Then on top of that it is the best price on the net and free shipping. Definitely will buy from again. Thanks Rob

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