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What is a Quaife differential?

Author

Andrew Vasquez

Updated on March 18, 2026

What is a Quaife differential?

The Quaife ATB (Automatic Torque Biasing) differential is a unique type of limited-slip diff that substantially improves traction for powerful vehicles using only gear mechanisms. Quaife even supply FORD as original equipment for their Focus RS range.

Also, how does a Quaife differential work?

The Quaife ATB Helical LSD differential is a "different beast" so to speak. It uses all gear design for ultimately smooth transfer of torque to the proper places. When both wheels have equal traction the differential works in normal fashion. This is a torque sensing differential rather than speed sensing.

Subsequently, question is, what is a Wavetrac differential? Wavetrac®: Designed from a clean sheet using state-of-the-art knowledge and engineering to be a better differential than any other. It uses a patented design to improve grip in low traction conditions. Wavetrac®: Gives you quicker acceleration and faster cornering by driving both drive wheels instead of just one.

Similarly one may ask, what does Quaife mean?

Quaife's signature product is its line of automatic torque biasing differentials, a form of limited slip differentials that employ helical gears rather than clutch mechanisms that are controlled either mechanically or by computers.

What is a plated diff?

The plated limited slip differential essentially consists of an ordinary bevel gear differential combined with friction plates which can (partially) engage the side gears to the differential cage. The larger the torque, the greater the locking effect.

Is limited slip better than open?

If the other wheel spins in the opposite direction, you have an open differential. If it spins in the same direction, you have a limited slip differential, or LSD. When working properly, an open differential is the best riding, most comfortable option for everyday driving.

Which is better limited slip or locking differential?

An automatic locking differential can unlock and allow the inside wheel to rotate freely, but only when power is limited. The limited slip differential will allow some slipping between the two side gears, this allows both wheels to get equal traction even though one is spinning faster than the other.

How long does a differential last?

A rear differential service consists of removing the rear differential cover, cleaning any old fluid from inside the differential case, resealing the cover, and adding clean fluid. After a rear differential fluid change, most vehicles will go 20,000 to 40,000 miles before it's due again.

Is limited slip differential worth it?

In a limited-slip differential, engine torque is distributed evenly to each wheel on the axle. Ideally, it is better to drive on roads that are clear when you have this differential. But if you drive over mud or ice on the road, one of your wheels may lose traction as it spins.

What are the benefits of a limited slip differential?

In this situation, a limited-slip differential prevents excessive power from being allocated to one wheel, and so keeps both wheels in powered rotation, ensuring that the traction will not be limited to the wheel which can handle the minimum amount of power.

What happens when a limited slip differential fails?

Limited Slip Symptoms
A traditional clutch-type differential will lose its ability to transfer power to the slower spinning wheel, essentially turning it back into a standard "open" differential. Once the fluid wears out, the differential will progressively fail to transfer power while cruising or turning.

How much is a limited slip differential?

Only 1 left in stock - order soon. In Stock. It's Dana< a Dana limited slip differential in a Dana axle, the ultimate, i am a super Jeeper, i own multiple wranglers and have had street rods, Dana, Dana, Dana!!

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What is a helical differential?

The TRE Helical LSD is a helical-cut style pinion gears performance limited slip differential, it maximizes wheel traction, also enhances the characteristics of driving and handling.

How does a limited slip differential work?

Limited slip differentials transmit equal torque to both wheels when driving straight. However, when one wheel spins due to loss of traction, a patch of ice, mud, too much throttle, etc., then the unit automatically provides more power to the wheel that has traction.

Is Quaif a Scrabble word?

quif is an acceptable dictionary word for games like scrabble, words with friends, crossword, etc.

What is a Truetrac differential?

?The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics. Operation. The Truetrac operates as a standard or open differential under normal driving conditions, allowing one wheel to spin faster or slower as necessary.

How does a Torsen differential work?

The Torsen (from Torque Sensing) works as an open differential when the amount of torque going to each wheel is equal. As soon as one wheel starts to lose traction, the difference in torque causes the gears in the Torsen differential to bind together. *TORSEN is a registered trademark of Zexel Torsen, Inc.

How does a Truetrac work?

The Truetrac operates by transferring power from the spinning wheel to the wheel with the most traction. If one tire breaks traction, the amount of rotation (or spin) is controlled. The torque is then sent to the other tire that still has traction.

Do Torsen differentials wear out?

No, a torsen will not wear like a clutch. It will either work, or make horrible noises because teeth have broken off and are grinding around loose in the housing. Keep in mind the torsen only biases torque, it doesn't fully shift 100% of it from one wheel to the other. I think the Miata torsens are around 1:2.1 bias?

What is a torque biasing differential?

That is, they work WHILE IN MOTION and delivering torque to both wheels. The design senses if a wheel is slipping and BIASES torque delivery to the wheel with more traction, while in motion. Torque biasing differentials keep you from getting stuck before you get stuck and keep you moving forward.

What is the difference between a Detroit Locker and Truetrac?

The Detroit Truetrac from EATON is a helical-gear style differential. It operates as an open differential under normal driving conditions, so that one wheel can spin faster or slower as necessary. An Eaton Truetrac for the Dana 44; and one being installed in a fifth-gen Camaro rear housing.

How does a Wavetrac work?

work in basically the same manner: they divide the drive torque between the two axles, applying drive to each side, up to the available grip of each tire. The amount of drive torque one wheel can get over the other is described as the bias ratio, a measure of the torque split across the axle.

How does an open differential work?

When the differential is unlocked (open differential), it allows each wheel to rotate at different speeds (such as when negotiating a turn), thus avoiding tire scuffing. An open (or unlocked) differential always provides the same torque (rotational force) to each of the two wheels, on that axle.

Which type of clutch pack is used in limited slip differential?

Clutch, cone-type, or plate LSD
The clutch type has a stack of thin clutch-discs, half of which are coupled to one of the drive shafts, the other half of which are coupled to the spider gear carrier. The clutch stacks may be present on both drive shafts, or on only one.

What is a Torsen limited slip differential?

Torsen Limited-Slip Differential. The Torsen's unique torque-sensing ability keeps engine power going to the ground during changing traction conditions. The Torsen functions as an open differential as long as the amount of torque transmitted to each rear wheel remains equal.

What is a limited slip differential final drive?

A limited-slip differential (LSD) is a type of differential that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts.

Why are limited slip differentials typically utilized by motorsport vehicles?

If one wheel loses traction, only a small amount of torque is necessary to drive this wheel. The other wheel will receive an equally low amount of torque, therefore the total amount of torque transmitted to the road is low. To overcome this downside, most motorsport cars use clutch-pack limited slip differentials.