SPL Parts replaces the soft factory rubber bushing with a low-friction, PTFE-lined FK spherical bearing, eliminating deflection and bind under load to hold suspension geometry, sharpen response, and improve feedback. CNC-machined 6061-T6 aluminum housings; sold as a pair. Made in the USA. Adjustable front caster rod monoball bushings with offset spacers for +/-4 degrees of caster; 1in FK bearings.
| Type | Adjustable front caster rod bushings |
| Position | Front |
| Bearing | 1in FK spherical, PTFE-lined |
| Adjustment | +/-4 deg caster |
| Part Number | SPL CRB G29 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2026 | BMW | Z4 | M40i |
| 2020 | BMW | Z4 | M40i First Edition |
| 2020-2021 | BMW | Z4 | sDrive M40i |
| 2019-2026 | BMW | Z4 | sDrive30i |
| 2024 | Toyota | GR Supra | 45th Anniversary Edition |
| 2021-2022 | Toyota | GR Supra | A91 Edition |
| 2023 | Toyota | GR Supra | A91-MT Edition |
| 2020-2026 | Toyota | GR Supra | Base |
| 2020 | Toyota | GR Supra | Launch Edition |
| 2026 | Toyota | GR Supra | MkV Final Edition |
| 2020-2026 | Toyota | GR Supra | Premium |
