Quaife ATB Differential

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Available exclusively from mountune, the Quaife ATB helical LSD differential for mk7 Fiesta ST fits the B6 gearbox. A direct replacement for the standard Ford open differential, the Quaife differential transforms your car's performance.

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.

Benefits over a standard open differential:

  • maximise traction
  • minimise wheel spin
  • reduced torque steer and snatching in front wheel drive cars
  • a 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.


Customer Reviews

5 Based on 15 Reviews
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DF
01/08/2019
Daniel F.

Quaife ATB Differential Mk7.5

I’m a little bit late to the party and had my reservations to purchasing the Quaife as obviously it’s not a cheap add on but saying that let me add I had issues with bad under steer prior to having the quaife fitted and even running on fairly cheap tyres I have pretty much lost all of the under steer so where prior to the quaife being fitted roundabouts where mainly a front end slide let off let off let off now are no longer, it also has a noticeable Traction gain putting the power down. A definite recommend for any other mk7 Fiesta ST owner especially if your running an increase in WHP.

M
30/07/2019
Mark

Quaife ATB

A definite big improvement over the standard diff, this is a must have if you're running the M230. Big thanks to Ryan, Fred and the team at Mountune HQ, superb customer service as always.

A
29/05/2019
Alex

Must Have!

Difference out of the box with the MR230 kit is astonishing. With some further experience, the car will happily keep up with others running over 100bhp more through the twisty B-roads. Provides insane grip and is a must have if you're running anything above standard power!


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