SPL Parts solid differential mounting bushings for the 2020+ Toyota GR Supra (A90) and 2019+ BMW Z4 (G29), 2-Series, 3-Series and 4-Series (G2X/G42). They replace the soft stock bushings, known to tear under hard track use, to lock the differential to the subframe, eliminating diff bounce under launches, reducing wheel hop and protecting the driveshaft and half shafts. CNC machined from 6061-T6 billet aluminum, complete front + subframe kit. Made in the USA.
| Type | Solid differential mount bushings (kit) |
| Material | 6061-T6 billet aluminum |
| Benefit | No diff bounce; less wheel hop |
| Included | Front + subframe bushings |
| Part Number | SPL SDB G29 |
| Origin | Made in the USA |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2026 | Toyota | GR Supra | Base |
| 2020-2026 | Toyota | GR Supra | Premium |
| 2019-2026 | BMW | Z4 | sDrive30i |
| 2022-2026 | BMW | Z4 | M40i |
| 2019-2025 | BMW | 330i | Base |
| 2020-2025 | BMW | M340i | Base |
| 2021-2026 | BMW | M440i | Base |
| 2023-2025 | BMW | M240i | Base |
