Eliminate Wheel Hop and Traction Loss on the GR Supra and BMW Z4 G29
The Torque Solution TQSTS-GR-722 is a solid billet aluminum differential bushing kit for the 2020-2026 Toyota GR Supra (A90/A91) and the 2019-2025 BMW Z4 G29. Machined from 6061 billet aluminum with a clear anodized finish, the TQSTS-GR-722 replaces the factory rubber differential mounts with solid inserts that eliminate the compliance and deflection responsible for wheel hop, traction loss, and inconsistent 60-foot times. The kit includes three mounts covering all differential mounting positions. Torque Solution backs this kit with a limited lifetime warranty. Note: solid bushing kits increase noise, vibration, and harshness compared to factory rubber mounts. These are recommended for track and performance applications where traction consistency is the priority over ride comfort.
Key Features
- Solid 6061 billet aluminum construction, clear anodized finish
- Eliminates differential compliance for direct power transfer to the wheels
- Reduces wheel hop and traction loss during hard acceleration
- Improves 60-foot times and rear traction consistency on track
- Direct fit for the 2020-2026 Toyota GR Supra A90/A91 and 2019-2025 BMW Z4 G29
- Three-mount kit covers all differential mounting positions
- Clear anodized finish for corrosion resistance
- Limited lifetime warranty from Torque Solution
- Professional installation recommended due to NVH increase
Fitment
| Year Range | Make | Model |
|---|---|---|
| 2020-2026 | Toyota | GR Supra (A90/A91) |
| 2019-2025 | BMW | Z4 G29 |
Specifications
| Detail | Value |
|---|---|
| Part Number | TS-GR-722 |
| SKU | TQSTS-GR-722 |
| UPC | N/A |
| Material | 6061 Billet Aluminum |
| Finish | Clear Anodized |
| Mount Type | Solid Billet (No Rubber) |
| Quantity | 3 Mounts (Full Differential Kit) |
| Warranty | Limited Lifetime |
| Drive Type | Track / Race |
What's Included
- 3 x Torque Solution TQSTS-GR-722 solid billet aluminum differential mounts
About Torque Solution
Torque Solution designs and manufactures precision billet aluminum drivetrain components for performance and track use. Their solid mount and bushing kits are widely used by GR Supra and BMW Z4 owners competing in time attack, drag racing, and HPDE events. Every Torque Solution product is backed by a limited lifetime warranty and built to eliminate the factory compliance that limits traction and power transfer under hard use.
Frequently Asked Questions
What is the Torque Solution TQSTS-GR-722?The Torque Solution TQSTS-GR-722 is a set of three solid 6061 billet aluminum differential mounts for the 2020-2026 Toyota GR Supra A90/A91 and the 2019-2025 BMW Z4 G29. It replaces the factory rubber differential bushings to eliminate wheel hop and traction loss under hard acceleration.
Will I notice increased noise and vibration with this kit?Yes. Solid billet differential mounts transmit more drivetrain vibration into the chassis than factory rubber mounts. Most owners report a noticeable increase in drivetrain noise and harshness, especially at low speeds and during light throttle. For a daily-driven GR Supra, the TQSTS-GR-722 is best reserved for vehicles that are primarily used on track.
Does the TQSTS-GR-722 fit both the A90 and A91 GR Supra?Yes. The TQSTS-GR-722 fits the 2020-2026 Toyota GR Supra in both the standard A90 and the A91 edition variants, as all share the same differential mounting configuration.
Does this kit also fit the BMW Z4 G29?Yes. The GR Supra A90 and BMW Z4 G29 share the same platform and differential mounting points. The TQSTS-GR-722 is a confirmed direct fit for the 2019-2025 BMW Z4 G29.
How many mounts are included in the kit?The TQSTS-GR-722 includes three solid billet aluminum mounts, covering all differential mounting positions on the GR Supra and Z4 G29 chassis.
Is professional installation required?Torque Solution recommends professional installation. Differential removal on the GR Supra and Z4 G29 requires a lift, proper support equipment, and torque specifications. The installation process is within reach of an experienced home mechanic with the right tools, but first-timers should use a shop.
Will this void my factory warranty?Modifying factory drivetrain mounts with solid billet inserts may give a dealer grounds to deny warranty claims related to drivetrain or suspension components under the Magnuson-Moss Warranty Act. Consult your dealer or warranty provider before installation if factory warranty coverage is a concern.
Can I run this on a daily-driven GR Supra?Technically yes, but Torque Solution and most installers do not recommend it for daily street use due to the significant NVH increase. The TQSTS-GR-722 is best suited for track-focused builds where traction consistency and wheel hop elimination outweigh ride comfort.
Installation Instructions
- Raise and safely support the vehicle on jack stands rated for the full vehicle weight.
- Support the differential with a transmission jack before removing any mounting hardware.
- Remove the factory differential mounting bolts and lower the differential carefully.
- Press or drive out the factory rubber bushings from each mount location using appropriate tools.
- Install the TQSTS-GR-722 solid billet mounts into each mounting position.
- Reinstall the differential and torque all mounting bolts to factory specification.
- Lower the vehicle and perform a test drive, checking for unusual sounds or vibrations before returning the vehicle to normal use.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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