Wavetrac Front Differential for Toyota GR Yaris / GR Corolla
Wavetrac Front and Rear Differentials for Toyota GR Yaris / GR Corolla
Wavetrac makes helical torque-biasing limited slip differentials for the Toyota GR Yaris (GXPA16) and GR Corolla (GZEA14), in front and rear versions. The GR-FOUR AWD system splits torque between the axles, but each axle still relies on its differential to share torque between the left and right wheels. Some GR Yaris and GR Corolla variants, including Rallye and Circuit Pack cars, leave the factory with Torsen limited slip differentials, while others run open differentials, so check which your car has before choosing an upgrade.
Shop by Vehicle
Choosing the Right Part
- Front differential (GXPA16/GZEA14): replaces the front differential and is where most owners start, as the front axle carries significant load under corner-exit throttle.
- Rear differential (GXPA16/GZEA14): complements the front unit for cars doing serious track time or loose-surface driving.
On cars with an open differential, a Wavetrac replaces a unit that sends torque to the wheel with least grip. On cars with factory Torsen differentials, the Wavetrac's patented design is intended to keep biasing torque even when one wheel is unloaded or lifts, a situation where a conventional helical differential can behave like an open one.
Why Wavetrac
A Wavetrac is a gear-type (helical) differential with no clutch packs, so there are no wear items to rebuild and no lock-unlock harshness at low speed. It biases torque progressively under load and releases smoothly off throttle, so the car drives normally around town.
Installation & What You'll Need
Installation by a professional driveline specialist is recommended. The differential housing must be opened, so factor in removal of the relevant driveline components, fresh gear oil and new hardware where specified. Do not use Red Line ShockProof gear oil, as it voids the Wavetrac warranty.
FAQ
Does this fit both GR Yaris and GR Corolla? Yes, the listed front and rear units cover both GXPA16 GR Yaris and GZEA14 GR Corolla.
Do I need the front and rear, or just one? The front is the usual starting point. The rear complements it for cars doing serious track or loose-surface work.
Does my car already have a limited slip differential? Some variants, including Rallye and Circuit Pack GR Yaris, have factory Torsen differentials. Check your car's specification or contact us to confirm.
Will this affect daily driveability? No. The helical design stays smooth at low load.
Is there a warranty? Yes, Wavetrac differentials carry a manufacturer warranty against defects.
Need help deciding between front, rear or both? Contact our team at sales@chicaneaustralia.com.au.
