Transfer cases

Front transfer case Toyota GR Yaris

Suitable for:

We have developed a stronger hypoid gear set, input shaft, pinion bearing and billet casing for the front transfer assembly of the Toyota GR Yaris/Corolla.

Specification

With this product, you can avoid issues with the original gear set, which is weaker and prone to gear tooth damage. Our new gear set has fewer teeth than the original, allowing use of larger teeth that can handle higher torque and greater impacts.

Our stronger hypoid gear set (Toyota SHD Front Hypoid Gearing+Tube) features 32 teeth on the ring gear and 14 teeth on the pinion, compared to the original, which has 39 teeth on the ring gear and 19 teeth on the pinion. The gear ratio is very similar to the original and closer to a 1:1 ratio between the front and rear axles. Not only gearing, but also input shaft was improved to endure most extreme conditions. New design of the shaft with thicker wall and securing nut instead of snap ring results in more durable solution. Both gear set and input shaft are made from high-alloy steel and finished using the REM isotropic superfinishing method for a superior surface finish.

Due to higher forces, which can be transferred through our hypoid gear set, there is incentive to make the case suitable for increased load and this is provided by our CNC billet case. Besides better strength properties, there is significant advantage in lubrication and cooling process. This is achieved by improved design, which contains +25 % of oil beyond the original. Our transfer can be supplied with lubrication system connected to X Shift sequential gearbox and it‘s also possible to connect additional oil cooler, as the casing contains additional plugs.

Why XShift?
Major Advantages
  • Stronger teeth
  • 32 teeth on the ring gear and 14 teeth on the pinion
  • Gears and input shaft finished using REM isotropic superfinishing method
  • Aircraft grade CNC billet aluminium case
  • Greater wear resistance
  • Longer lifespan and higher reliability
  • Installation and adjustment at X Shift Gearboxes
  • Suitable in combination with our gearbox and transfer case lubrication
  • Increased amount of oil by 25 %
  • Direct replacement for the original transfer case
Advanced Design and Upgrades

Significant improvements were made in transfer design. Our CNC billet case has additional ribs to support heat transfer between hot oil and surrounding air. Other new feature in the field of oil management is additional output with drilled strainer, that can be connected to external oil cooler. In case you use X Shift sequential gearbox, we recommend using our lubrication system. Instead of small, separated amount of oil in transfer case, we use a powerful lubrication pump that provides an oil supply from our sequential gearbox to the transfer and back to oil fill. 

The latest upgrade concerns a more reliable solution for the pinion gear mounting, with the newly developed pinion bearing unit showing higher strength and the mounting being more stable compared to the OEM solution. The more massive flange also allowed for additional reinforcement of the billet casing in this area.

Mounting Options

There are two options of mounting the transfer to the gearbox. OEM version uses studs, which is proven and functional solution, however it has a downside, that it doesn´t allow dismounting of the transfer without removing full gearbox from the car. To solve this problem, we modified design of the case and added option to replace studs with IMBUS bolts. Due to these adjustments it´s possible to remove transfer from the car without removinig full gearbox, you have to only dismount the axle housing.

Prepared to X Shift Transfer Case Lubrication System

The billet transfer case has other advantages. The entire unit is pre-prepared for a unique transfer case lubrication system (TCLS), which can be easily implemented into the gearbox without the need for additional CNC modifications, as is the case with the OEM casing.

If you already own X SHIFT sequential gearbox, you can easily upgrade to this unique both gearbox and transfer case lubrication system, which dramatically reduces the thermal stress on the transfer case unit. Oil circulation is further supported by the presence of an internal oil pump. This system is unique and no other manufacturer offers you this advantage.

Of course, the system can also be ordered together with the gearbox and the gearbox will be optimally prepared for this system from our technicians. Transfer case is also compatible with other GR gearboxes, including OEM, in its default configuration.

Thanks to the presence of the pump, an additional oil cooler can also be included in the circuit before the transfer case, which will help further reduce the temperature of the common oil charge, which further increases the reliability and durability of the entire front drivetrain unit. This solution is recommended especially for more demanding circuit driving and especially for hot summer climates.

 

 

Accessories

To set the hypoid gearing clearance correctly, we offer special set of shims that can be inserted under the pinion or the ring gear.

Available options

  • C1 = billet casing
    • for OEM pinion bearing
  • C5 -V2 = billet casing + SHD hypoid gears + SHD tube + upgraded pinion bearing + full OEM parts set
    • for upgraded pinion bearing
    • complete version – strongly recommended
Configurator

For prices and more info, please contact us down below.

Please fill in your details and as many information as possible about your car (power, race purpose). After sending your configuration we will contact you as soon as possible.

X Shift Gearboxes sample catalog mockup
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